#include <stdio.h>

int main(void)
{
    int a[5000];
    int sum = 0;
    int n;
    
    scanf("%d", &n);
    for (int i = 0; i < n; i++) scanf("%d", &a[i]);
    for (int i = 0; i < n; i++) sum += a[i];
    printf("%d\n", sum);
    return 0;
}