1 2 3 4 5 6 7 8 9 0 -1 -1 -1 -1 -1 0 0 0 0 -1 -1 -1 -1 -1 9 9 8 10 10 -1 -1 -1 -1 -1
10 6 6 0 0 1 1 2 2 3 3 4 4 5 5