C123132112322333121111113121111331333133313231333133311223323211222333133312111   >>    C12313211232233312111111312111133133313331323133313331122332321122233313331211   <<    C123132112322333121111113121111331333133313231333133311223323211222333133312113   >>      C123132112322333121111113121111331333133313231333133311223323211222333133312112   >>