-14 8
10
6 0 6 16
-6 16 -11 16
-19 14 18 14
13 -6 17 -6
-21 13 1 13
-10 -3 -8 -3
10 19 10 17
2 -7 2 9
12 -6 12 17
-1 -3 9 -3