C123132112322333121111113121111331333133313231333133311223323211323133213321   >>    C12313211232233312111111312111133133313331323133313331122332321132313321332   <<    C123132112322333121111113121111331333133313231333133311223323211323133213323   >>      C123132112322333121111113121111331333133313231333133311223323211323133213322   >>