#include <iostream>
using namespace std;

int main ()
{
    int a, b;
    int answer;
    
    a = 1;
    b = 7;
    a = a + 3;
    answer = b - a;
    
    cout << answer;
    
      cout << "Press ENTER to continue..." << endl; 
  cin.get();
  return 0;
}