C1231321123223331211111131211113313331333132322131213222123311121   >>    C123132112322333121111113121111331333133313232213121322212331112   <<    C1231321123223331211111131211113313331333132322131213222123311123   >>      C1231321123223331211111131211113313331333132322131213222123311122   >>