C111123313121111121111331333133313331333131121133133313331333133313232212131211   >>    C11112331312111112111133133313331333133313112113313331333133313331323221213121   <<    C111123313121111121111331333133313331333131121133133313331333133313232212131213   >>      C111123313121111121111331333133313331333131121133133313331333133313232212131212   >>