#include <stdio.h>
#include <stdlib.h>
int cal(int *array, int n) {
    int cnt = 0;
    for(int i = 0; i < n; i++) {
        cnt += *(array+i);
    }
    return cnt;
}

int main() {
    int n;
    int result;
    while (scanf("%d", &n) != EOF) {
        int *array = (int*)malloc(sizeof(int) * n);
        for(int i = 0; i < n; i++) {
            scanf("%d",(array + i));
        }
        result = cal(array, n);
        free(array);
    }
    printf("%d", result);
    return 0;
}