l6-c9
2 1 2 1 2 1 2 1 2
1 2 1 2 1 2 1 2 1
2 1 2 1 2 1 2 1 2
1 2 1 2 1 2 1 2 1
2 1 2 1 2 1 2 1 2
1 2 1 2 1 2 1 2 1

1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2
1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2
1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2


1 2 1 2 1 2 1 2 1
1 2 1 2 1 2 1 2 1
1 2 1 2 1 2 1 2 1
1 2 1 2 1 2 1 2 1
1 2 1 2 1 2 1 2 1
1 2 1 2 1 2 1 2 1