Program Body:

#include <iostream>

#include <string>

using namespace std;

class ester{

int a,b;

public:

    ester(){

    a=0;

    b=0;

    ester(int x,int y){

    a=x;

    b=y;

    ester operator+(ester s){

    ester clows;

    clows.a=a+s.a;

    clows.b=b+s.b;

    return clows;

    void show(){

    cout<<"value of a is "<<a<<endl;

    cout<<"value of b is "<<b<<endl;

};

int main (){

ester erf1(10,30),erf2(20,40),erf3;

erf3=erf1+erf2;

cout<<endl;

erf3.show();

return 0;

Thanks

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