1 2 2 2 1 2 1

3 1 1 2 1 2 1 1

1 1 1 2

1 1 2 1 2 1 2

1 2 2 2 1

1 2 1 1 2 2 3 1

1 1 1 1 2 1 2 1

1 1 1 1 1 1