#include <stdio.h>

int main() {
    int n = 0;
    int i = 0;
    int sum = 0;
    int num = 0;
    scanf("%d",&n);
    for(i = 0;i<n;i++)
    {
        scanf("%d ",&num);
        sum+=num;
    }
    printf("%d",sum);
    return 0;
}