s_2143 (968B)
1 2 3 4 5 6 7 8 _ ____-----_O___ 9 (_)====[ ]====== 10 ~~~~-----~~~~~ 11 ^ ^ ^ 12 13 14 __________________________ 15 _ |-------------------------- 16 _|__ I | o o o o 17 \ .I. | 18 O O |-. |I| o o o | __ 19 _____|_|____/[_]\_______|_|_|___________|__|__|____________________