C12313211232233312111111312111133133313331333132232233122321311113131   >>    C1231321123223331211111131211113313331333133313223223312232131111313   <<    C12313211232233312111111312111133133313331333132232233122321311113133   >>      C12313211232233312111111312111133133313331333132232233122321311113132   >>