C123132112322333121111113121111331333133313231333231323233222112212233231   >>    C12313211232233312111111312111133133313331323133323132323322211221223323   <<    C123132112322333121111113121111331333133313231333231323233222112212233233   >>      C123132112322333121111113121111331333133313231333231323233222112212233232   >>