#include <iostream>
#include <string>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
#define repi(i,n) for(int i=0; i<(n); i++)
#define repd(i,n) for(int i = n; i >= 0; i--)

int main() {
  int N, x = 0, sum = 0;
  scanf("%d", &N);

  repi(i,N) {
    scanf("%d", &x);
    sum += x;
  }
  printf("%d", sum);
  return 0;
}