C111123313331323113313331333133313331323132311233133313112211233121
>>
C11112331333132311331333133313331333132313231123313331311221123312
<<
C111123313331323113313331333133313331323132311233133313112211233123
>>
C111123313331323113313331333133313331323132311233133313112211233122
>>