C111123313331323113313331323133313331311331311331333132233121121
>>
C11112331333132311331333132313331333131133131133133313223312112
<<
C111123313331323113313331323133313331311331311331333132233121123
>>
C111123313331323113313331323133313331311331311331333132233121122
>>