C111112111133131121133133313331333133313331322121111331333133313113313311232111   >>    C11111211113313112113313331333133313331333132212111133133313331311331331123211   <<    C111112111133131121133133313331333133313331322121111331333133313113313311232113   >>      C111112111133131121133133313331333133313331322121111331333133313113313311232112   >>