1 2 1 1 1 2 3

2 1 1 4 1 1 1 1

2 4 1 1 3 1 1

5 1 1 2 1 1

2 3 3 1 1 1

1

1 1 1 1 3 2 1 1 1

1 1 1 2 1 1 1 2 1 1 1