C123132112322333121111113121111331333133313231333133311223323211231222332331121   >>    C12313211232233312111111312111133133313331323133313331122332321123122233233112   <<    C123132112322333121111113121111331333133313231333133311223323211231222332331123   >>      C123132112322333121111113121111331333133313231333133311223323211231222332331122   >>