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