C123132112322333121111113121111331333133313331322322331223222333231121221   >>    C12313211232233312111111312111133133313331333132232233122322233323112122   <<    C123132112322333121111113121111331333133313331322322331223222333231121223   >>      C123132112322333121111113121111331333133313331322322331223222333231121222   >>