C12313211232233312111111312111133133313331333132232233122322133311121   >>    C1231321123223331211111131211113313331333133313223223312232213331112   <<    C12313211232233312111111312111133133313331333132232233122322133311123   >>      C12313211232233312111111312111133133313331333132232233122322133311122   >>