C11111333133313232233133313331333131133131331121111133313221323323131211   >>    C1111133313331323223313331333133313113313133112111113331322132332313121   <<    C11111333133313232233133313331333131133131331121111133313221323323131213   >>      C11111333133313232233133313331333131133131331121111133313221323323131212   >>