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class complex
{
private:
int a,b;
public:
void setNumber(int d1,int d2){
a=d1;
b=d2;
}

friend complex sumComplex(complex w1,complex w2); 
void printComplex(){
    cout<<"The sum of the given two numbers is "<<a<<" +"<<b<<"i"<<endl;
}

};

complex sumComplex(complex w1,complex w2){
complex w3;
w3.setNumber((w1.a+ w2.a),(w1.b+w2.b));

return w3;

}

int main(){
complex c1,c2;
c1.setNumber(2,8);
c1.printComplex();
c2.setNumber(3,7);
c2.printComplex();

complex sum;
sum=sumComplex(c1,c2);
sum.printComplex();

return 0;

}