C111123313331323113313331333133313231323133312111113331312121121
>>
C11112331333132311331333133313331323132313331211111333131212112
<<
C111123313331323113313331333133313231323133312111113331312121123
>>
C111123313331323113313331333133313231323133312111113331312121122
>>