1 2 1 1 2 2 3

1 3 4 2 2 1

2 2 1 2 1 3 1 1

1 1 1 3 1 1 3 1 2

1 1 3 1 2 1 1 2

1 1 1 3 2 1 2

3 1 1 1 2 2 2

2 1 1 1 1 2 1 1 2