C111123313331323113313331333133313331323133112113313232213232212121
>>
C11112331333132311331333133313331333132313311211331323221323221212
<<
C111123313331323113313331333133313331323133112113313232213232212123
>>
C111123313331323113313331333133313331323133112113313232213232212122
>>