C111123313121111121111331333133313331333133313121111331331121111332211   >>    C11112331312111112111133133313331333133313331312111133133112111133221   <<    C111123313121111121111331333133313331333133313121111331331121111332213   >>      C111123313121111121111331333133313331333133313121111331331121111332212   >>