//calcul de la racine carree
#include <iostream>
#include <cmath>

using namespace std;

int main() {
  double x, y;
  cout << "Entrez deux nombres > 0 : " << endl;
  cin >> x >> y;
  
  double z = sqrt(x+y);
  cout << "La racine carree de " << x + y << " est " << z << endl;

  //version alternative
  /*
  cout << "La racine carre de " << x + y << " est " << sqrt(x + y) << endl;
  */  

  return 0;
}