C1231321123223331211111131211113313331333132322131213221333233121   >>    C123132112322333121111113121111331333133313232213121322133323312   <<    C1231321123223331211111131211113313331333132322131213221333233123   >>      C1231321123223331211111131211113313331333132322131213221333233122   >>