3 1 1 1 1 4 1

1 1 1 2 3 1 1 1

3 1 2 1 2 1 1 2

2 1 1 1 3 2 1

1 1 2 2 1 2 1 1 1

1 2 1 1 1 1

1 2 3 2 1 1 1