C123132112322333121111113121111331333133313231333232323221122213131   >>    C12313211232233312111111312111133133313331323133323232322112221313   <<    C123132112322333121111113121111331333133313231333232323221122213133   >>      C123132112322333121111113121111331333133313231333232323221122213132   >>