C21221212121211331313233313131133132333132313223313231323221333132313211
>>
C2122121212121133131323331313113313233313231322331323132322133313231321
<<
C21221212121211331313233313131133132333132313223313231323221333132313213
>>
C21221212121211331313233313131133132333132313223313231323221333132313212
>>