C31232233133313221211113313331333132313331322121111112222313233231   >>    C3123223313331322121111331333133313231333132212111111222231323323   <<    C31232233133313221211113313331333132313331322121111112222313233233   >>      C31232233133313221211113313331333132313331322121111112222313233232   >>