diff --git a/day19/Makefile b/day19/Makefile
new file mode 100644
index 0000000..06d980e
--- /dev/null
+++ b/day19/Makefile
@@ -0,0 +1,8 @@
+all: day19.beam
+	erl -noshell -s day19 start -s init stop
+
+day19.beam:
+	erlc day19.erl
+
+clean:
+	rm -f day19.beam
diff --git a/day19/day19.erl b/day19/day19.erl
new file mode 100644
index 0000000..530db9a
--- /dev/null
+++ b/day19/day19.erl
@@ -0,0 +1,72 @@
+-module(day19).
+-export([start/0]).
+
+find_start_col([Head|_Tail], Index)
+  when Head == "|" -> Index;
+find_start_col([_Head|Tail], Index)
+  -> find_start_col(Tail, Index + 1).
+
+map_input(InputList)
+  -> map_input(InputList, dict:new(), 0).
+
+map_input([], Maze, _Row)
+  -> Maze;
+map_input([Head|Tail], Maze, Row)
+  -> NewMaze = map_row(re:split(string:chomp(Head), ""), Maze, 0, Row),
+     map_input(Tail, NewMaze, Row + 1).
+
+map_row([], Maze, _Col, _Row)
+  -> Maze;
+map_row([Head|Tail], Maze, Col, Row)
+  -> map_row(Tail, dict:store({ Col, Row }, Head, Maze), Col + 1, Row).
+
+trace_maze(Maze, X, Y, Marked, VisitedChars, Steps, DeltaX, DeltaY)
+  -> Key = { X, Y },
+     Marked2 = dict:store(Key, 1, Marked),
+     Value = dict:fetch(Key, Maze),
+     if Value >= <<"A">>, Value =< <<"Z">> ->
+          Terminal = is_terminal(Maze, X, Y, Marked2, DeltaX, DeltaY),
+          if Terminal -> { VisitedChars, Steps };
+             true -> trace_maze(Maze, X + DeltaX, Y + DeltaY, Marked2, lists:append(VisitedChars, [Value]), Steps + 1, DeltaX, DeltaY)
+          end;
+        Value == <<"+">> ->
+          { NewDeltaX, NewDeltaY } = find_new_direction(Maze, X, Y, Marked2),
+          trace_maze(Maze, X + NewDeltaX, Y + NewDeltaY, Marked, VisitedChars, Steps + 1, NewDeltaX, NewDeltaY);
+        true ->
+          trace_maze(Maze, X + DeltaX, Y + DeltaY, Marked2, VisitedChars, Steps + 1, DeltaX, DeltaY)
+     end.
+
+is_terminal(Maze, X, Y, Marked, DeltaX, DeltaY)
+  -> NextVal = dict:fetch({ X + DeltaX, Y + DeltaY }, Maze),
+     NextVal == <<" ">>.
+
+find_new_direction(Maze, X, Y, Marked)
+    -> NorthVal = get_new_direction_val(Maze, X, Y - 1, Marked, <<"|">>),
+       SouthVal = get_new_direction_val(Maze, X, Y + 1, Marked, <<"|">>),
+       EastVal = get_new_direction_val(Maze, X + 1, Y, Marked, <<"-">>),
+       WestVal = get_new_direction_val(Maze, X - 1, Y, Marked, <<"-">>),
+       if NorthVal -> { 0, -1 };
+          SouthVal -> { 0, 1 };
+          EastVal -> { 1, 0 };
+          WestVal -> { -1, 0 }
+       end.
+
+get_new_direction_val(Maze, X, Y, Marked, DesiredChar)
+  -> Key = { X, Y },
+     HasKey = dict:is_key(Key, Marked),
+     if HasKey ->
+          IsMarked = dict:fetch(Key, Marked),
+          if IsMarked == 1 -> false;
+             true ->
+               Piece = dict:fetch(Key, Maze),
+               Piece == DesiredChar
+          end;
+        true -> false
+     end.
+
+start()
+  -> { ok, File } = file:read_file("input"),
+     InputList = re:split(unicode:characters_to_list(string:chomp(File)), "\n"),
+     Maze = map_input(InputList),
+     Marked = dict:fold(fun(Key, _Value, Acc) -> dict:store(Key, 0, Acc) end, dict:new(), Maze),
+     io:fwrite("~p~n", [trace_maze(Maze, 157, 0, Marked, [], 1, 0, 1)]).
diff --git a/day19/input b/day19/input
new file mode 100644
index 0000000..8364c71
--- /dev/null
+++ b/day19/input
@@ -0,0 +1,200 @@
+                                                                                                                                                             |                                           
+ +-------------------------------+           +-------------+           +-+   +---------------------+     +-------+                       +-----------------------------------------+       +-----+       
+ |                               |           |             |           | |   |                     |     |       |                       |                   |                     |       |     |       
+ +-----+ +-----------------------------------|---+         |           | |   |     +---+           +-----|---------------+     +---------------+ +-----+ +---|---------------------|-------+ +---|-+ +-+ 
+       | |                       |           |   |         |           | |   |     |   |                 |       |       |     |         |     | |     | |   |                     |         |   | | | | 
+       +-|---+ +-----------------|---------------|---+     | +---------|-|-+ | +---|---|---------------------+   +---+   |     |         |     +-|-----|-|---|-----------------+   +---------|-------|-+ 
+         |   | |                 |           |   |   |     | |         | | | | |   |   |                 |   |       |   |     |         |       |     | |   |                 |             |   | | |   
+         |   | +-----------------|-------------------|-----|-|---------|-------|---+   |                 |   +-----------|-----|-----------+     |     | |   |             +---+           +-----|-|---+ 
+         |   |                   |           |   |   |     | |         | | | | |       |                 |           |   |     |         | |     |     | |   |             |               | |   | | | | 
+         |   +-------------------|---------------|-----------|-----------|-+ | +-------------------------|---+     +-|---------|---------|-|-----|-----------|-----------------------------------|-|-+ | 
+         |                       |           |   |   |     | |         | |   |         |                 |   |     | |   |     |         | |     |     | |   |             |               | |   | |   | 
+   +-+   | +---+ +-----------------------------------|---------------------+ +---------------------------|-----------|---|-----------------------------------|-------+     |       +---------+   | |   | 
+   | |   | |   | |               |           |   |   |     | |         | | |           |                 |   |     | |   |     |         | |     |     | |   |       |     |       |       |     | |   | 
+   | |   +-----------------------------------|---------------|-------------|-----------|-----------+     |   |     | |   |     |     +---|-|-----|-----------+       |   +---------------------+ | |   | 
+   | |     |   | |               |           |   |   |     | |         | | |           |           |     |   |     | |   |     |     |   | |     |     | |           |   | |       |       |   | | |   | 
+   | |     |   | |               | +-----------------|-----------------|-|-|-----------|-----------|-----|---|-----|-|---+     |   +-|---|-------|-------|---+   +---|---|-+ +-----|-----------|---|-+ | 
+   | |     |   | |               | |         |   |   |     | |         | | |           |           |     |   |     | |         |   | |   | |     |     | |   |   |   |   |   |     |       |   | | | | | 
+   | | +---|---|---------------------------+ |   |   |     | | +---------|-|---+       |           |     |   |     | |         |   | |   +-+     |     | +---|---|------P|-+ |     |       |   | +-+ | | 
+   | | |   |   | |               | |       | |   |   |     | | |       | | |   |       |           |     |   |     | |         |   | |           |     |     |   |   |   | | |     |       |   |     | | 
+   | | | +-|---|-|---------------|---------|---------|-+   | | |     +---|-----|-------|-----------|-----+   +---------------------|-------------|-----------|-------|-----+ |     |       |   |     | | 
+   | | | | |   | |               | |       | |   |   | |   | | |     | | | |   |       |           |               | |         |   | |           |     |     |   |   |   |   |     |       |   |     | | 
+   | | | | | +-------------------|---------|---------|-|-+ | | |     | | | |   |       |           |               | |         |   | |           |   +-|-----|---|-------------------------+ +-|---+ +-+ 
+   | | | | | | | |               | |       | |   |   | | | | | |     | | | |   |       |           |               | |         |   | |           |   | |     |   |   |   |   |     |         | |   |     
+   | | | | | | | |         +-----|---------------------|-+ | | |     | +-|-------------|-----+     |               | |         |   | |           |   | |     +-----------|---|---+ |         | |   |     
+   | | | | | | | |         |     | |       | |   |   | |   | | |     |   | |   |       |     |     |               | |         |   | |           |   | Y         |   |   |   |   | |         | |   |     
+   | | | | | | | |       +---+ +-----------|-|-------+ |   | | +-----|---|-----|-----------------------------+ +---------------|-----|---------------|-------+   |   |   |   |   | |         | |   |     
+   | | | | | | | |       | | | | | |       | |   |     |   | |       |   | |   |       |     |     |         | |   | |         |   | |           |   | |     |   |   |   |   |   | |         | |   |     
+   +-|-|-----|---|-------------|-|-|-------|-|---|-----|---|-------------|-|---+   +---------|-----|-----------------------+   +-----|-----------|---|-------+   +-----+ |   |   | |         | |   |     
+     | | | | | | |       | | | | | |       | |   |     |   | |       |   | |       |   |     |     |         | |   | |     |       | |           |   | |             | | |   |   | |         | |   |     
+     | | | | | | |       | | | | | |       | |   |     |   | |       |   | |       |   |     |     |         | |   | |     +-------|-------------|---+ +-------------|-|-|-+ |   | |         | |   |     
+     | | | | | | |       | | | | | |       | |   |     |   | |       |   | |       |   |     |     |         | |   | |             | |           |                   | | | | |   | |         | |   |     
+ +-----|-|-----|-|-------|-|-----------------|-------------|-|-----+ | +---+ +-------------------------------------|V----------------|-----------|---------------------------|---------------|-----+     
+ |   | | | | | | |       | | | | | |       | |   |     |   | |     | | | |   |     |   |     |     |         | |   | |             | |           |                   | | | | |   | |         | |         
+ |   | | | | | | |     +-----------|-+     | |   |     |   | |     | | | | +-|-----|---------|-----|-----------+   | |           +-|---------------------------------|-|-+ | |   | |       +-------+     
+ |   | | | | | | |     | | | | | | | |     | |   |     |   | |     | | | | | |     |   |     |     |         |     | |           | | |           |                   | |   | |   | |       | | |   |     
+ | +-|-|---|-|-|-------|---|---|-----|-----|-|---+   +-----|-|-----|-|-+ | | |     |   |     |     |         | +---+ |           | | |           |                   | |   | |   | |       | | |   |     
+ | | | | | | | | |     | | | | | | | |     | |       | |   | |     | |   | | |     |   |     |     |         | |     |           | | |           |                   | |   | |   | |       | | |   |     
+ | +-|-----|---|-|----Q----|-----+ | U +-----|-------|-----|-|-------|---|---+     |   |     |     |         | |     |     +-----|-|-----------------------------------|---------|---------|-----+ |     
+ |   | | | | | | |     | | | | |   |   |   | |       | |   | |     | |   | |       |   |     |     |         | |     |     |     | | |           |                   | |   | |   | |       | | | | |     
+ |   | | | | | | |     | | | | | +-------------------|-----|-|-----------|-|-----------------------|---------|-------------|---------------------|-----------+       | |   | |   | |       | | | | |     
+ |   | | | | | | |     | | | | | | |   |   | |       | |   | |     | |   | |       |   |     |     |         | |     |     |     | | |           |           |       | |   | |   | |       | | | | |     
+ |   | | | | +-|-------+ | | | +-|-----|---|-|---------|---|-|-----|-+   | |     +-|---|-----|-----------+   | |     |     |     | | |           |           |       | |   | | +-|-|-------+ | | | |     
+ |   | | | |   | |       | | |   | |   |   | |       | |   | |     |     | |     | |   |     |     |     |   | |     |     |     | | |           |           |       | |   | | | | |         | | | |     
+ |   | | | |   | |       | | |   | +---------|-------|-----|-----------------------|---------|---------+ |   | |     +-----|-----+ | |           |           |       | +-+ | | | | |         | | | |     
+ |   | | | |   | |       | | |   |     |   | |       | |   | |     |     | |     | |   |     |     |   | |   | |           |       | |           |           |       |   | | | | | |         | | | |     
+ |   | | | |   | |       +-|-|-------------|---+     | |   | |     |     | |     | |   |     |     |   | |   | |           |       | |           |           |       |   | | | | | |         | | | |     
+ |   | | | |   | |         | |   |     |   | | |     | |   | |     |     | |     | |   |     |     |   | |   | |           |       | |           |           |       |   | | | | | |         | | | |     
+ | +-|-|---|-------------------------+ |   | | |     | |   | |     |     | |     | | +-------|-----|---|-+   | |           |       | |           |           |       |   | | | | | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     | |   | |     |     | |     | | | |     |     |   |     | |           |       | |           |           |       |   | | | | | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     | |   | |     |     | |     | | | |     |     +-----------|-----------|-----------+         |   +-------------------+ | | | | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     | |   | |     |     | |     | | | |     |         |     | |           |       | | |         |   |       |       |     | | | | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     | +---|---+   |     | |     | | | |     |         |     | |           |       | | |         |   | +-----|-------------|---+ | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     |     | | |   |     | |     | | | |     |         |     | |           |       | | |         |   | |     |       |     | |   | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     |     | | |   |     | | +---|-|-|-|---------------------|-|-------------------|-+ |         |   | |     |       |     | |   | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | | |     |     | | |   |     | | |   | | | |     |         |     | |           |       |   |         |   | |     |       |     | |   | |         | | | |     
+ | | | | | |   | |         | |   |   | |   | +-|-----|-------------|-----|-|-----------|-----|---+     +-----|---------------------|---|-------+ |   | |     |       |     | |   | |         | | | |     
+ | | | | | |   | |         | |   |   | |   |   |     |     | | |   |     | | |   | | | |     |   |           | |           |       |   |       | |   | |     |       |     | |   | |         | | | |     
+ | | | | | | +---+         | |   |   | |   |   |     |     | | |   |     +-|-----+ | | |     |   |           | |           |       |   |       | |   | |     |       |     | |   | |         | | | |     
+ | | | | | | | |           | |   |   | |   |   |     |     | | |   |       | |     | | |     |   |           | |           |       |   |       | |   | |     |       |     | |   | |         | | | |     
+ | | +-+ | | +-|-----------|---------|-|---|---|-------------------|-------|-----------|-----|---|-----------|-------------+       |   +-------|-|-----|-----|-------|-----------|-|-----------+ | |     
+ | |     | |   |           | |   |   | |   |   |     |     | | |   |       | |     | | |     |   |           | |                   |           | |   | |     |       |     | |   | |         |   | |     
+ | |     | |   |           | |   |   | | +-|---|-----|---------+   +-+     | |     +-|-----------|----B--------|-+                 |           | | +-+ |   +---+     |   +-|-|---+ |         |   | |     
+ | |     | |   |           | |   |   | | | |   |     |     | |       |     | |       | |     |   |           | | |                 |           | | |   |   | | |     |   | | |     |         |   | |     
+ | |     | |   +-----------|-----|---|-|-+ |   |     | +-----|-------------|-|---------|-----|---|-----------|-+ |                 |         +-|-+ |   |   | | |     |   | | |     |         |   | |     
+ | |     | |               | |   |   | |   |   |     | |   | |       |     | |       | |     |   |           |   |                 |         | |   |   |   | | |     |   | | |     |         |   | |     
+ | |     | |               | |   |   | |   |   | +---|-----|---------|---------------------------|-----------|---|-----------+     |         | |   |   |   | | |     |   | | |     |         |   | |     
+ | |     | |               | |   |   | |   |   | |   | |   | |       |     | |       | |     |   |           |   |           |     |         | |   |   |   | | |     |   | | |     |         |   | |     
+ | |     | |               | |   |   | |   +---|-----|---------------+     | |       | |     |   |           |   |         +-|-----|---------|-|-------|---|-|-|-----|---|---+     |         |   | |     
+ | |     | |               | |   |   | |       | |   | |   | |             | |       | |     |   |           |   |         | |     |         | |   |   |   | | |     |   | |       |         |   | |     
+ | |     | |               | |   |   | |       | |   | |   | |     +-------|-|-------|-----+ |   +-----------|---|---------|-------|---------|-----|-------|-|-|-----|---|-|-+     |         |   | |     
+ | |     | |               | |   |   | |       | |   | |   | |     |       | |       | |   | |               |   |         | |     |         | |   |   |   | | |     |   | | |     |         |   | |     
+ | |     | |               | |   |   | |       | |   | |   | |     |       | |       | |   | |               |   |         | |     +-----------|---|---------|-|-----|-+ | | |     |         |   | |     
+ | |     | |               | |   |   | |       | |   | |   | |     |       | |       | |   | |               |   |         | |               | |   |   |   | | |     | | | | |     |         |   | |     
+ | | +---|-----------------|-|-+ |   | |       | +---|-+ +---------|-------------------------|---+           |   |         | |               | |   |   |   | | |     | | | | |     |         |   | |     
+ | | |   | |               | | | |   | |       |     |   | | |     |       | |       | |   | |   |           |   |         | |               | |   |   |   | | |     | | | | |     |         |   | |     
+ | | |   | |               | +-+ | +-|---------|---------|-----------------------------|-----|---------------|-------------|-|-----------------+ +-|---|-------|---+ | | | | |     |         |   | |     
+ | | |   | |               |     | | | |       |     |   | | |     |       | |       | |   | |   |           |   |         | |               |   | |   |   | | |   | | | | | |     |         |   | |     
+ | | |   | |           +---|-----|---|-----+   | +---|-------|-----|-------|-|---------|---------------------|---|---------|---------------------------|---|-|-|---|---------------|---+ +-+ |   | |     
+ | | |   | |           |   |     | | | |   |   | |   |   | | |     |       | |       | |   | |   |           |   |         | |               |   | |   |   | | |   | | | | | |     |   | | | |   | |     
+ | | |   | |     +-----+   +-+   | | | |   |   | |   |   | | |     | +-----|-|-----+ | |   | | +-|-----------|---------------|-------------------------|-----|-|---+ | | | | |     |   | | | |   | |     
+ | | |   | |     |           |   | | | |   |   | |   |   | | |     | |     | |     | | |   | | | |           |   |         | |               |   | |   |   | | |     | | | | |     |   | | | |   | |     
+ | +-+   | |     |     +---------|---|-|---+   | |   |   | | |   +-|-------+ |     | | |   | | | |           |   |         | |         +-----+   | |   |   +-|-----------+ | |     |   | | | |   | |     
+ |       | |     |     |     |   | | | |       | |   |   | | |   | | |       |     | | |   | | | |           |   |         | |         |         | |   |     | |     | |   | |     |   | | | |   | |     
+ |       | |     |     |     |   | | | |       | |   |   | | |   | +---------------|-|-|---|-----|-----------------------------------------------|-|---|---------------|---|-----+ |   | | | |   | |     
+ |       | |     |     |     |   | | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         | |         |         | |   |     | |     | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |   | | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         | +-------------------|-----|-------|---+ | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |   | | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |           |         | |   |     | |   | | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |   +-|-|---------|-----------------|-------------------|-|---|-----------------|---|---------|---------+ |         | |   |     | |   | | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |     | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     | |   | | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |     | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     | |   | | |   | |   | |   | | | |   | |     
+ |       | |     |     |     |     | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     | |   | | |   | |   | |   | | | |   | |     
+ |       | +-----|-----|-------+   | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     | +---|-|-|---|-------|-+ | | | |   | |     
+ |       |       |     |     | |   | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     |     | | |   | |   | | | | | | |   | |     
+ |       |   +---------|-----|-|---|---|-------|-|-----------|-----------------------|-----|-|---------------|-------------|-----------|---------|-------------------|-------|---|---|-|---|-|---|-----+ 
+ |       |   |   |     |     | |   | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     |     | | |   | |   | | | | | | |   | |   | 
+ |       |   |   |     |     | |   | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     |     | | |   | |   | | | | | | |   | |   | 
+ |       |   |   |     |     | |   | | |       | |   |   | | |   |   |       |     | | |   | | | |           |   |         |         | |         | |   |     |     | | |   | |   | | | | | | |   | |   | 
+ +-+     |   |   |     |     | |   | | |       | +-------+ | |   |   | +-----|-------+ |   | | | |           |   |         |         | +-----------|---|-----------|-|-+ +-+ |   | | | | | | |   | |   | 
+   |     |   |   |     |     | |   | | |       |     |     | |   |   | |     |     |   |   | | | |           |   |         |         |           | |   |     |     | |   |   |   | | | | | | |   | |   | 
+ +-----+ |   |   |     |     | |   | | |       |     |     | |   |   | |     |     |   |   | | | |           |   |         |         |           | |   |     |     | |   |   |   | | | | | | |   | |   | 
+ | |   | |   |   |     |     | |   | | |       |     |     | |   |   | |     |     |   |   | | | |           |   |         |         |           | |   |     |     | |   |   |   | | | | | | |   | |   | 
+ +-----|-|-------|-------------------|-|-------|-----------|-|---|---------------------|-----|---|-------------------------|---------|---+       | |   |     |     | |   |   |   | | | | +-----------+ | 
+   |   | |   |   |     |     | |   | | |       |     |     | |   |   | |     |     |   |   | | | |           |   |         |         |   |       | |   |     |     | |   |   |   | | | |   | |   | | | | 
+   |   | |   |   |     |     | |   | | |       |     |   +-|-|---------|-----------|---|---|---------------------|-------------------+   | +-+   | |   | +-----------|-+ |   |   | | | |   | |   | | | | 
+   |   | |   |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   |   | | | |           |   |         |             | | |   | |   | |   |     | | | |   |   | | | |   | |   | | | | 
+ +-----|-----|-----------------|-----|---------|-------------|---------------------|---|-+ +-|-|-------------|-------------|-------------|-|-----+ |   | |   |     | | | |   |   | | | |   | |   | | | | 
+ | |   | |   |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   | |   | | |           |   |         |             | | |     |   | |   |     | | | |   |   | | | |   | |   | | | | 
+ | +-------+ |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   | +---|---|-----------|---|-------+ |             | | |     |   | |   |     | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |       | |             | | |     |   | |   |     | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |       +---------------|---|-----|-------------+ | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |     | |   | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |         |             | | |     |   | |   |   | | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |   +-|-----|---|-------|---------|---|---|---|-------|-----|-----------|-------------------------------+         | | |     |   | |   |   | | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |   | | |   | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |         |   |         | | |     |   | |   |   | | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |   | +---+ | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |         |   |         | | |     |   | |   |   | | | | |   |   | | | |   | |   | | | | 
+ |     | | | |   |     |   |   | | | | |       |     |   | | |   |   | |     |     |   |     | | |           |   |         |   |         | | |     |   | |   |   | | | | |   |   | | | |   | |   | | | | 
+ |   +-|-|-------|-----+   |   | | | | |       |     |   | | |   +-----|---+ |     |   |     | | |           |   |         |   |         | +-|-----------|---|---|-|---|-|---------|-|-----|-|-+ | | | | 
+ |   | | | | |   |         |   | | | | |       |     |   | | |       | |   | |     |   |     | | |           |   |         |   |         |   |     |   | |   |   | | | | |   |   | | | |   | | | | | | | 
+ |   | | | | |   |         |   | | | | |       |     |   | | |       | |   | |     |   |     | | |           |   |         |   |         |   |     |   | |   |   | | | | |   |   | | | |   | | | | | | | 
+ |   | | | | |   |         |   | | | | |       |     |   | | |       | |   | |     |   |     | | |           |   |         |   |         |   |     |   | |   |   | | | | |   |   | | | |   | | | | | | | 
+ |   | | | | |   |         |   | | | | |       |     |   | | |       | +---|-|-+   |   |     | | |           |   |         |   | +-------|---|---------+ |   +---+ | | | | +-----|-+ | |   | | | | | | | 
+ |   | | | | |   |         |   | | | | |       |     |   | | |       |     | | |   |   |     | | |           |   |         |   | |       |   |     |     |         | | | | | |   |   | |   | | | | | | | 
+ |   | | | | |   |   +-----|---|-|-|-|---------------|-----|-|-------|-----|-|-|-------|-----|-----------------------------+   | |       |   |     |     |     +-----|-+ | | |   | +-+ |   | | | | | | | 
+ |   | | | | |   |   |     |   | | | | |       |     |   | | |       |     | | |   |   |     | | |           |   |             | |       |   |     |     |     |   | |   | | |   | |   |   | | | | | | | 
+ |   | | | | |   |   |     | +---|-|-|-------------------|-|-|-------|-------|---------|-------|-|---------------|-------------|-|---------------------+ |     |   | |   | | +-----|-------+ | | | | | | 
+ |   | | | | |   |   |     | | | | | | |       |     |   | | |       |     | | |   |   |     | | |           |   |             | |       |   |     |   | |     |   | |   | |     | |   |     | | | | | | 
+ |   | | | | |   +---------|-----|---|-|-------+     |   | | |   +-+ | +---|-|-+   +---------|-|-|-----------|---+             | |       |   |     |   | |     |   | |   | |     | |   |     | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |   | |         |     | | |           |                 | |       |   |     |   | |     |   | |   | |     | |   |     | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |   | |     +-------------|-------+   +-------------------+       |   |     |   +-------|---|-|-------+   | |   |     | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |   | |     |   |     | | |       |                     |         |   |     |     |     |   | |   | | |   | |   |     | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |   +-------|---------|-|-|-+     |                     |         |   |   +-------|---------|-----|---|---|---+ | +-+ | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |     |     |   |     | | | |     |                     |         |   |   | |     |     |   | |   | | |   | | | | | | | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   | | |   | | | |   +-------|---|-----|-|---|---------------------------|-------------|---|-|-----|-----|---|-------|-|---|---+ | | | | | | | | | 
+ |   | | | | |       |     | | | | | F |             |   | | |   | | | |   | |     |   |     | | | |     |                     |         |   |   | |     |     |   | |   | | |   | |   | | | | | | | | | 
+ |   | | | | |       |     | | | | | | |             |   +---+   | | | |   | +-----|---|---------------------------------------|---------|---+   +-|-----------|-----+   | +-+   | |   | | | | | | | | | 
+ |   | | | | |       |     | | | | | | |             |     |     | | | |   |       |   |     A | | |     |                     |         |         |     |     |   |     |       | |   | | | | | | | | | 
+ +---|-|-+ | |   +---------|---|---|---+             |     |     | | | |   |       |   |     | | | |     |   +-----------------------------------------+ |     |   |     |       | |   | | | | | | | | | 
+     | |   | |   |   |     | | | | | |               |     |     | | | |   |       |   |     | | | |     |   |                 |         |         |   | |     |   |     |       | |   | | | | | | | | | 
+     | | +-----------|-+   +-|-|-|-|-|---------------------|-------|-|-|-----------|---|-----|-|---------|---|-----------------|---------|---------------|-----|---|---------------|-----|-|-+ | | | | | 
+     | | | | |   |   | |     | | | | |               |     |     | | | |   |       |   |     | | | |     |   |                 |         |         |   | |     |   |     |       | |   | | |   | | | | | 
+ +-------|-|-|-------------+ | | | | |               |     |     | | | |   |       |   |     | | | |     |   |                 |         |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   |   | |   | | | | | |               |     |     | | | |   |       |   |     | | | |     |   |                 |         |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   |   | |   | | | | | |               |     |     | | | |   |       |   |     | | | +---------------+           |         |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   |   | |   | | | | | |               |     |     | | | |   |       |   |     | | |       |   |     |           |         |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   |   | |   | | | | | | +-------------|-----------------|-----------|---|-----|-|---------|-------------------------+     |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   |   | |   | | | | | | |             |     |     | | | |   |       |   |     | | |       |   |     |           |   |     |         |   | |     |   |     |       | |   | | |   | | | | | 
+ |   | | | | |   | +-|-+   | | | | | | |             |     |     | | | |   |       |   |     | | |       |   |     |           +---|-------------------|-|-----|---|-------------|-|-----|-----+ | | | | 
+ |   | | | | |   | | |     | | | | | | |             |     |     | | | |   |       |   |     | | |       |   |     |               |     |         |   | |     |   |     |       | |   | | |     | | | | 
+ |   | | | | | +-|---|-+   | | | | | | |             |     |     | | | |   |     +-+   |     | | |       |   |     |               |     +---------|-----|-----|---|-----|-------|-------|-|---+ | | | | 
+ |   | | | | | | | | | |   | | | | | | |             |     |     | | | |   |     |     |     | | |       |   |     |               |               |   | |     |   |     |       | |   | | |   | | | | | 
+ +---|---+ | | | | | | +-+ | | | | | | |             |     |     | | | |   |     |     |     | | |       |   |     |               |             +-|-----|---+ +-----------+     | |   | | |   | | | | | 
+     | |   | | | | | |   | | | | | | | |             |     |     | | | |   |     |     |     | | |       |   |     |               |             | |   | |   |     |     | |     | |   | | |   | | | | | 
+     +---+ +---|-+ | |   | | | | | | | |   +---------|-+   |     | | | |   |     |     |     | | |       |   |     |               |             | |   | |   |     |     | |     | |   | | |   | | | | | 
+       | |   | |   | |   | | | | | | | |   |         | |   |     | | | |   |     |     |     | | |       |   |     |               |             | |   | |   |     |     | |     | |   | | |   | | | | | 
+ +-------|---------|---------|-|---|-|-----|-----------|-----------|---|--W------------|---------------------|-----|-------------+ |             | |   | |   |     |     | |     | |   | | |   | | | | | 
+ |     | |   | |   | |   | | | | | | | |   |         | |   |     | | | |   |     |     |     | | |       |   |     |             | |             | |   | |   |     |     | |     | |   | | |   | | | | | 
+ |     | |   | +---|-|---|-----|-+ | | | +---+       | |   |     | | +-|---------------------|---|-------|-----------------------------------------|-----|---------|-----|-|-----|-----|---|-------|-+ | 
+ |     | |   |     | |   | | | |   | | | | | |       | |   |     | |   |   |     |     |     | | |       |   |     |             | |             | |   | |   |     |     | |     | |   | | |   | | |   | 
+ |     | | +-|-----|---+ | | +-----|---|---|-|---------|---|-----+ | +-+   |     |     |     | | |       |   |     |             | |             | |   | |   |     |     | +-----+ |   | | |   +-|-|-+ | 
+ |     | | | |     | | | | |   |   | | | | | |       | |   |       | |     |     |     |     | | |       |   |     |             | |             | |   | |   |     |     |         |   | | |     | | | | 
+ |     | | | |     | | | +---------|-+ | | | |       | |   |       | |     |     |     |     | | |       |   |     |             | |             | |   | |   |     |     |         |   | | |     | | | | 
+ |     | | | |     | | |   |   |   |   | | | |       | |   |       | |     |     |     |     | | |       |   |     |             | |             | |   | |   |     |     |         |   | | |     | | | | 
+ |     | | | |     | | |   |   |   |   | | | |       | |   |   +---|-+     |     |     |     | | |       |   |     |             | |       +-----|-----|-|---|-----------+         |   | | |     | | | | 
+ |     | | | |     | | |   |   |   |   | | | |       | |   |   |   |       |     |     |     | | |       |   |     |             | |       |     | |   | |   |     |               |   | | |     | | | | 
+ |     | +---|-----|-------|---|---|---|-|-|-+       | |   |   |   |   +---|-----|-----|-----------------|---|-----|-------------|---------------------|-----------|-------------------|---|-----+ | | | 
+ |     |   | |     | | |   |   |   |   | | |         | |   |   |   |   |   |     |     |     | | |       |   |     |             | |       |     | |   | |   |     |               |   | | |       | | | 
+ |     |   | |     | | |   |   |   |   | | |         | |   |   |   |   |   |     |     |     | | |       |   |     |             | |       |     | |   | |   |     |               |   | | |       | | | 
+ |     |   | |     | | |   |   |   |   | | |         | |   |   |   |   |   |     |     |     | | |       |   |     |             | |       |     | |   | |   |     |               |   | | |       | | | 
+ +-------------------|-|-+ |   |   |   | | |         | |   |   |   |   +---------|---------------|-------|---------|-------------+ +-------+     +-|-+ | |   |     |               |   +-|-|-------|-+ | 
+       |   | |     | | | | |   |   |   | | |         | |   |   |   |       |     |     |     | | |       |   |     |                               | | | |   |     |               |     | |       |   | 
+       |   | |   +-|-|-+ | |   |   |   | | |         | |   |   |   +-------|---------------------|-----------|-----|-------------------------------+ | | |   |     |               |     | |       +-+ | 
+       |   | |   | | |   | |   |   |   | | |         | |   |   |           |     |     |     | | |       |   |     |                                 | | |   |     |               |     | |         | | 
+       |   | |   +-|-|---------|-----+ | | |         | |   |   |         +-------------|-------|-------------|-----|-----------------------------------|-|---------|-----------------------|-+       | | 
+       |   | |     | |   | |   |   | | | | |         | |   |   |         | |     |     |     | | |       |   |     |                                 | | |   |     |               |     | | |       | | 
+       |   | |     | |   | |   |   | | | | |         | |   |   |         | |     |     |     | | |       |   |     |                                 | +-----|-----|-------------------+ | | |       | | 
+       |   | |     | |   | |   |   | | | | |         | |   |   |         | |     |     |     | | |       |   |     |                                 |   |   |     |               |   | | | |       | | 
+       |   +-------+ |   | |   +-----|-|-|-|---------------|---|---+   +---------------|-----+ +---------|---+     |                                 |   |   |     |               |   | | | |       | | 
+       |     |       |   | |       | | | | |         | |   |   |   |   | | |     |     |         |       |         |                                 |   |   |     |               |   | | | |       | | 
+       |     |       |   | |       | | | +-+         | |   |   +---+ +-----|-----------|---------|-----------------|-------------------------------+ |   |   |     |               |   | | | |       | | 
+       |     |       |   | |       | | |             | |   |         | | | |     |     |         |       |         |                               | |   |   |     |               |   | | | |       | | 
+       |     |       |   | |       | | |             | |   |         | | | |     |     |         |       |         |                               | |   |   |     |               | +-|-|-------+   | | 
+       |     |       |   | |       | | |             | |   |         | | | |     |     |         |       |         |                               | |   |   |     |               | | | | | |   |   | | 
+       |     |       |   | |       | | |             | |   +-----------|-|-------|-----|---------+       |         |                 +-------------|-----|-------------------------|-|-|-+ | |   |   +-+ 
+       |     |       |   | |       | | |             | |             | | | |     |     |                 |         |                 |             | |   |   |     |               | | |   | |   |       
+ +-----+ +---+ +-------------------|-----------------+ |           +-|-+ +-------------------------------+         |                 |         +-------------------|---------------|---+   | |   |       
+ |       |     |     |   | |       | | |               |           | |     |     |     |                           |                 |         |   | |   |   |     |               | |     | |   |       
+ |       |     +---------|-|-----------|-----------------------------------+     +-----|-----------------------------------------------------------|-|-------------|-----------------|-+   | |   | +---+ 
+ |       |           |   | |       | | |               |           | |                 |                           |                 |         |   | |   |   |     |               | | |   | |   | |   | 
+ |       |     +-----|---|-------------|-----------------------------------------------|---------------------------|-----------------|---------|---|-+   |   |     +-----------------|-+   | |   | |   | 
+ |       |     |     |   | |       | | |               |           | |                 |                           |                 |         |   |     |   |                     | |     | |   | |   | 
+ +-----------+ +-----+   | |       | +-+   +-----------|-----------|-----------------------------------------------+                 |         +---+     |   +-----------------------------|-+   | |   | 
+         |   |           | |       |       |           |           | |                 |                                             |                   |                         | |     |     | |   | 
+ +-------|---|-----------+ |       |       |           |           | |                 +-------------------------+                   +-------------------+ +-+                     | |     |     | |   | 
+ |       |   |             |       |       |           |           | |                                           |                                         | |                     | |     |     | |   | 
+ |       |   |             |       |       |           +---------------------------------------------------------------------------------------------------+ |                     | |     |     | |   | 
+ |       |   |             |       |       |                       | |                                           |                                           |                     | |     |     | |   | 
+ +-------|---+             |       +--------------------------------T|-------------------------------------------|-----------------------------------------------------------------|-|-----|-------+   | 
+         |                 |               |                       | |                                           |                                           |                     | |     |     |     | 
+         +-----------------------------------------------------------|---------------------------------------------------------------------------------------|-------------------+ +-+     +-----+     | 
+                           |               |                       | |                                           |                                           |                   |                     | 
+                           +---------------+                       +-+                                           +-------------------------------------------+                   +---------------------+