Thanks everyone. I solved my question by adding a special method.
- overload operator `+=` for private member mimonot
- overload operator `+=` for private member aEverr
- overload operator `+=` for private member mimonot
- overload operator `+=` for private member exelotl
- overload operator `+=` for private member mimonot
- overload operator `+=` for private member PMunch
- overload operator `+=` for private membe... Araq
- overload operator `+=` for private m... mimonot
