C111123313121111121111331333133313331333131322113121111121133221211   >>    C11112331312111112111133133313331333133313132211312111112113322121   <<    C111123313121111121111331333133313331333131322113121111121133221213   >>      C111123313121111121111331333133313331333131322113121111121133221212   >>