C123132112322333121111113121111331333133313231333133311223323212313213111221   >>    C12313211232233312111111312111133133313331323133313331122332321231321311122   <<    C123132112322333121111113121111331333133313231333133311223323212313213111223   >>      C123132112322333121111113121111331333133313231333133311223323212313213111222   >>