C123132112322333121111113121111331333133313231333133311223323211323322221311   >>    C12313211232233312111111312111133133313331323133313331122332321132332222131   <<    C123132112322333121111113121111331333133313231333133311223323211323322221313   >>      C123132112322333121111113121111331333133313231333133311223323211323322221312   >>