C111123313331323113313331333133313331323133112113313222313123121
>>
C11112331333132311331333133313331333132313311211331322231312312
<<
C111123313331323113313331333133313331323133112113313222313123123
>>
C111123313331323113313331333133313331323133112113313222313123122
>>