C111123313121111121111331333133313331333221311312111133133313232211211   >>    C11112331312111112111133133313331333133322131131211113313331323221121   <<    C111123313121111121111331333133313331333221311312111133133313232211213   >>      C111123313121111121111331333133313331333221311312111133133313232211212   >>