1 ______________________________________
3 | ____________________________ |
6 | | ____ ________ _______ | |
13 | | |____| |____| |____| | |
14 | | ____ _ _ __| | __ _ _ | |
15 | | | | | | / _ | /_ ( \/ ) | |
16 | |_| | || |_|| (_|| |_) \ /__| |
17 | |_|_|_\____\__/| __// / |
18 |_____________________|_|_(__/_________|