C31232233133313221211113313331333132313331322121111121111111333131133132313231   >>    C3123223313331322121111331333133313231333132212111112111111133313113313231323   <<    C31232233133313221211113313331333132313331322121111121111111333131133132313233   >>      C31232233133313221211113313331333132313331322121111121111111333131133132313232   >>