C123132112322333121111113121111331333133313231333232323222111121211   >>    C12313211232233312111111312111133133313331323133323232322211112121   <<    C123132112322333121111113121111331333133313231333232323222111121213   >>      C123132112322333121111113121111331333133313231333232323222111121212   >>