C12313211232233312111111312111133133313331333132232233122323123231211   >>    C1231321123223331211111131211113313331333133313223223312232312323121   <<    C12313211232233312111111312111133133313331333132232233122323123231213   >>      C12313211232233312111111312111133133313331333132232233122323123231212   >>