/*******************************************************
 * Copyright (C) 2015 Haotian Wu
 *
 * This file is the solution to the question:
 * https://www.hackerrank.com/challenges/simple-array-sum
 *
 * Redistribution and use in source and binary forms are permitted.
 *******************************************************/
#include <cstdio>
#include <cstring>
#include <string>
#include <cmath>
#include <cstdlib>
#include <map>
#include <set>
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main()
{
    int n;
    int sum = 0;
    scanf("%d",&n);
    while (n--)
    {
        int a;
        scanf("%d",&a);
        sum+=a;
    }
    printf("%d",sum);
}