C21221212121211331322132313132313132313232233132313223313231333133313232211
>>
C2122121212121133132213231313231313231323223313231322331323133313331323221
<<
C21221212121211331322132313132313132313232233132313223313231333133313232213
>>
C21221212121211331322132313132313132313232233132313223313231333133313232212
>>