C111123313331323113313331333133313331323133113313331333131323222211111
>>
C11112331333132311331333133313331333132313311331333133313132322221111
<<
C111123313331323113313331333133313331323133113313331333131323222211113
>>
C111123313331323113313331333133313331323133113313331333131323222211112
>>