C1111233131211111211113313331333133313331312331333131211111333133312321332111
>>
C111123313121111121111331333133313331333131233133313121111133313331232133211
<<
C1111233131211111211113313331333133313331312331333131211111333133312321332113
>>
C1111233131211111211113313331333133313331312331333131211111333133312321332112
>>