C123132112322333121111113121111331333133313231333133311223323211211122131221   >>    C12313211232233312111111312111133133313331323133313331122332321121112213122   <<    C123132112322333121111113121111331333133313231333133311223323211211122131223   >>      C123132112322333121111113121111331333133313231333133311223323211211122131222   >>