C111112111133131121133133313331323133313221131211113313113313331322123213121   >>    C11111211113313112113313331333132313331322113121111331311331333132212321312   <<    C111112111133131121133133313331323133313221131211113313113313331322123213123   >>      C111112111133131121133133313331323133313221131211113313113313331322123213122   >>