#57 n_Suma

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    int n,S=0,x;
    ifstream fisierin("n_suma.in");
    fisierin>>n;
    while(fisierin>>x)
      S+=x;
    fisierin.close();
    ofstream fisierout("n_suma.out");
    fisierout<<S;
    fisierout.close();
return 0;
}