#include <stdio.h>
int a [10000];
int main ()
{
    int n;
    scanf ("%d", &n);
    for (int i = 0; i < n; i++)
        scanf ("%d", &a[i]);
    int s = 0;
    for (int i = 0; i < n; i++)
        s += a[i];
    printf ("%d\n", s);
    return 0;
}