C123132112322333121111113121111331333133313231333133311223323211222132312131   >>    C12313211232233312111111312111133133313331323133313331122332321122213231213   <<    C123132112322333121111113121111331333133313231333133311223323211222132312133   >>      C123132112322333121111113121111331333133313231333133311223323211222132312132   >>