C1231321123223331211111131211113313331333133313223223312232213111223131   >>    C123132112322333121111113121111331333133313331322322331223221311122313   <<    C1231321123223331211111131211113313331333133313223223312232213111223133   >>      C1231321123223331211111131211113313331333133313223223312232213111223132   >>