C1231321123223331211111131211113313331333132322131213222133132231   >>    C123132112322333121111113121111331333133313232213121322213313223   <<    C1231321123223331211111131211113313331333132322131213222133132233   >>      C1231321123223331211111131211113313331333132322131213222133132232   >>