1 1 1 1

1 1 1 3 3 1 2

1 1 1 2 1 1 2

1 1 1 3 1 2 1 1

2 2 1 1 1 1 2

1 1 1 1 1 1 2 2 2

2 1 2 1 1

1 1 1 1 2 3 1 1 1