#include <iostream>

using namespace std;

int main()
{
        int N, somme, nb; 
        
        somme = 0;
        nb = 0;
                
        do
        {
                cout << "Veuillez saisir un entier" << endl;
                cin >> N;
                if (N!=0)
                {
                        somme = somme + N;
                        nb = nb + 1;
                }
        } while (N!=0);
        
        cout << "La somme des " << nb << " entiers saisis vaut " << somme << endl;

}