C111123313121111121111331333133313331333131333133313331333133112113321111
>>
C11112331312111112111133133313331333133313133313331333133313311211332111
<<
C111123313121111121111331333133313331333131333133313331333133112113321113
>>
C111123313121111121111331333133313331333131333133313331333133112113321112
>>