#include <iostream>
    using namespace std;
    class ThreeDExample
    {
        int P, Q, R;
        public:
        ThreeDExample() { P = Q = R = 0; }
        ThreeDExample(int m, int n, int o) { P = m; Q = n; R = o; }
        ThreeDExample operator()(ThreeDExample obj);
        ThreeDExample operator()(int num0, int num1, int num2);
        friend ostream &operator<<(ostream &strm, ThreeDExample op);
    };
    ThreeDExample ThreeDExample::operator()(ThreeDExample object)
    {
        ThreeDExample temp;
        temp.P = (P + object.P) / 2;
        temp.Q = (Q + object.Q) / 2;
        temp.R = (R + object.R) / 2;
        return temp;
    }
    ThreeDExample ThreeDExample::operator()(int num0, int num1, int num2)
    {
        ThreeDExample temp;
        temp.P = P + num0;
        temp.Q = Q + num1;
        temp.R = R + num2;
        return temp;
    }
        ostream &operator<<(ostream &strm, ThreeDExample obj) {
        strm << obj.P << ", " << obj.Q << ", " << obj.R << endl;
        return strm;
    }
    int main()
    {
        ThreeDExample objectA(1, 2, 3), objectB(10, 10, 10), objectC;
        objectC = objectA(objectB(50, 150, 250));
        cout << objectC;
        return 0;
    }