C++ Program to subract 2 no.s

#include<iostream>
using namespace std;
int main()
{
    int s1, s2 ,s;
    cout <<"Subtraction Program \n";
    cout <<"Enter value:- ";
    cin >>s1;
     cout <<"Enter value:- ";
    cin >>s2;
    s=s1-s2;
    cout <<s;
    return 0;
}