C123132112322333121111113121111331333133313231333133323223211233221   >>    C12313211232233312111111312111133133313331323133313332322321123322   <<    C123132112322333121111113121111331333133313231333133323223211233223   >>      C123132112322333121111113121111331333133313231333133323223211233222   >>