C1231321123223331211111131211113313331333133313223223312232213111131231   >>    C123132112322333121111113121111331333133313331322322331223221311113123   <<    C1231321123223331211111131211113313331333133313223223312232213111131233   >>      C1231321123223331211111131211113313331333133313223223312232213111131232   >>