// C++ program to check if two numbers are equal.
#include<iostream>
using namespace std;
int main()
{
    int x = 10;
    int y = 70;

    x = x + y;
    y = x - y;
    x = x - y;

    cout<< "X : " << x << "\n";
    cout<< "Y : " << y << "\n";

    return 0;
}