C111123313121111121111331333133313121111121111121111133313331333133313232211221
>>
C11112331312111112111133133313331312111112111112111113331333133313331323221122
<<
C111123313121111121111331333133313121111121111121111133313331333133313232211223
>>
C111123313121111121111331333133313121111121111121111133313331333133313232211222
>>