fffffffffffffffffffffff
f444444444444444444444f
f444444444444444444444f
f44fffffffffffffffff44f
f44ff0ffffffffffffff44f
f44fff0fffffffffffff44f
f44ff0ffffffffffffff44f
f44fffffffffffffffff44f
f44fffffffffffffffff44f
f44fffffffffffffffff44f
f44fffffffffffffffff44f
f44fffffffffffffffff44f
f444444444444444444444f
f4444444444444444fff44f
f444444444444444444444f
fffffffffffffffffffffff