25
-11 -16 1 -15
-4 3 -1 22
-21 -23 14 8
6 4 7 23
-20 -17 12 23
5 -15 18 -10
17 -8 19 2
-14 -11 -7 -7
-19 -24 -16 -4
-17 -9 1 -8
-23 -22 4 2
-9 -4 24 22
-5 -25 10 -5
-10 -25 14 18
-9 -3 8 5
-9 -14 17 5
-23 -16 18 19
-22 -16 7 4
11 -14 23 -13
2 -14 13 6
-17 -12 9 21
3 -13 6 -4
-16 -19 11 -12
18 -24 20 -3
-25 -23 6 15