C1231321123223331211111131211113313331333133313223223312223133221   >>    C123132112322333121111113121111331333133313331322322331222313322   <<    C1231321123223331211111131211113313331333133313223223312223133223   >>      C1231321123223331211111131211113313331333133313223223312223133222   >>