C1111233131211111211113313331333133313331322322331312111133131133131211   >>    C111123313121111121111331333133313331333132232233131211113313113313121   <<    C1111233131211111211113313331333133313331322322331312111133131133131213   >>      C1111233131211111211113313331333133313331322322331312111133131133131212   >>