13 5
0 1  2 3  1 1  4 2  1 1  3 1  0 2  1 3  2 1  3 2  1 2  3 3  2 1
4 2  2 1  1 1  1 3  3 2  0 1  4 3  0 3  3 2  2 2  1 1  1 2  0 2
2 1  1 2  3 1  0 1  3 1  0 3  1 1  1 2  3 3  2 1  0 3  2 2  1 3
2 3  4 1  1 2  4 1  0 2  2 1  3 2  1 1  2 1  0 3  3 1  2 1  1 2
2 2  1 1  3 1  2 2  4 3  1 2  4 1  0 2  1 2  2 1  3 1  0 1  4 3
