C123132112322333121111113121111331333133313231333133311223323212321122133211   >>    C12313211232233312111111312111133133313331323133313331122332321232112213321   <<    C123132112322333121111113121111331333133313231333133311223323212321122133213   >>      C123132112322333121111113121111331333133313231333133311223323212321122133212   >>