C1231321123223331211111131211113313331333133313223223312231122131   >>    C123132112322333121111113121111331333133313331322322331223112213   <<    C1231321123223331211111131211113313331333133313223223312231122133   >>      C1231321123223331211111131211113313331333133313223223312231122132   >>