C111123313121111121111331333133313331333131233133313121111121111112133312111
>>
C11112331312111112111133133313331333133313123313331312111112111111213331211
<<
C111123313121111121111331333133313331333131233133313121111121111112133312113
>>
C111123313121111121111331333133313331333131233133313121111121111112133312112
>>