C123132112322333121111113121111331333133313231333222331213223111222231   >>    C12313211232233312111111312111133133313331323133322233121322311122223   <<    C123132112322333121111113121111331333133313231333222331213223111222233   >>      C123132112322333121111113121111331333133313231333222331213223111222232   >>