Ketjupeli

16
2 2 2 6
-1 5 3 5
2 2 6 2
5 -1 5 3
2 6 6 2
2 -2 6 2
5 1 1 5
2 -1 6 -1
6 -1 2 3
4 -1 4 3
5 3 1 3
5 -1 1 3
2 6 -2 2
-1 5 -1 1
-4 2 0 2
1 3 -3 -1

Test 1

Verdict: ACCEPTED