C123132112322333121111113121111331333133313231333232323222112322311   >>    C12313211232233312111111312111133133313331323133323232322211232231   <<    C123132112322333121111113121111331333133313231333232323222112322313   >>      C123132112322333121111113121111331333133313231333232323222112322312   >>