#include <iostream>

using namespace std;

class Complex {
    public:
        int mRe, mIm;
        Complex(): mRe(0),mIm(0) {}
        Complex(int re, int im): mRe(re), mIm(im) {}
        Complex operator +=(Complex rhs) {
            mRe+=rhs.mRe;
            mIm+=rhs.mIm;
        }

        Complex operator +(Complex rhs) {
            Complex novi;
            novi.mIm = mIm + rhs.mIm;
            novi.mRe = mRe + rhs.mRe;
            return novi;
        }
};



ostream& operator << (ostream& out, const Complex& rhs) {
    out << rhs.mRe << "+" << rhs.mIm << "i";
    return out;
}

int main() {
    Complex broj(3,3);

    Complex broj2(2,1);

    Complex broj3 = broj+broj2;

    cout << broj3 << endl;
    return 0;
}