C1111233131211111211113313331333133313331333133311221123232213111
>>
C111123313121111121111331333133313331333133313331122112323221311
<<
C1111233131211111211113313331333133313331333133311221123232213113
>>
C1111233131211111211113313331333133313331333133311221123232213112
>>