#include <bits/stdc++.h>
using namespace std;


struct Complex {

    int real, imag;
    Complex(int r = 0, int i =0)  {real = r;   imag = i;}

    Complex operator + (Complex const &obj) {

      // Note that the operator on left is passed as a refrence and can be modified directly by modifying *this.

         Complex res;
         res.real = real + obj.real;
         res.imag = imag + obj.imag;
         return res;
    }
    void print() { cout << real << " + i" << imag << endl; }
};

int main()
{
    Complex c1(10, 5), c2(2, 4);
    Complex c3 = c1 + c2;
    c3.print();
    c1.print();
    c2.print();
}