C312321323131323131232313231323133313132322331323123121212121211111
>>
C31232132313132313123231323132313331313232233132312312121212121111
<<
C312321323131323131232313231323133313132322331323123121212121211113
>>
C312321323131323131232313231323133313132322331323123121212121211112
>>