C123132112322333121111113121111331333133313231333231323233221313223111   >>    C12313211232233312111111312111133133313331323133323132323322131322311   <<    C123132112322333121111113121111331333133313231333231323233221313223113   >>      C123132112322333121111113121111331333133313231333231323233221313223112   >>