#include <iostream>
using namespace std;

int main()
{
    int score = 0;
    int& sc = score;
    cout << "score = " << score << endl;
    cout << "sc = " << sc << endl;
    sc += 1000;
    cout << "score = " << score << endl;
    cout << "sc = " << sc << endl;
    score -= 200;
    cout << "score = " << score << endl;
    cout << "sc = " << sc << endl;
}
