#include <iostream>
using namespace std;

    class box{
        int x;
        int y;

    public:
        void set(int a, int b){
        x=a;
        y=b;
        }
    int retx(){
        return x;
    }

    int rety(){
        return y;
    }

    void show(){
        cout<<x<<endl<<y<<endl;
    }
    };

    int main(){

    box obj1, obj2, obj3;
    obj1.set(1,2);
    obj2.set(3,4);
    obj3.set(obj1.retx()+obj2.retx(),obj1.rety()+obj2.rety());
    obj3.show();


    return 0;

    }