C31232233133313221211113313331311331333133313331323131133233311   >>    C3123223313331322121111331333131133133313331333132313113323331   <<    C31232233133313221211113313331311331333133313331323131133233313   >>      C31232233133313221211113313331311331333133313331323131133233312   >>