C123132112322333121111113121111331333133313231333133311223323212313221123211   >>    C12313211232233312111111312111133133313331323133313331122332321231322112321   <<    C123132112322333121111113121111331333133313231333133311223323212313221123213   >>      C123132112322333121111113121111331333133313231333133311223323212313221123212   >>