C21221212121211331322132313132313231313232233132313223313221111
>>
C2122121212121133132213231313231323131323223313231322331322111
<<
C21221212121211331322132313132313231313232233132313223313221113
>>
C21221212121211331322132313132313231313232233132313223313221112
>>