// what is output when run on  6 3 12 14 9

#include <iostream.h>

void fun4(int, int&);

void main(){
  int a, b;
  a = 5;
  b = 2;
  fun4(a, b);
  cout << a << " " << b;
}

void fun4 (int i, int& j){
  int a, b;
  a = i + j;
  i = a - j;
  j = i - a;
  b = j + a;
}