#include <stdio.h>

int main() {
    int num = 0;
    int arr[50] = {0};
    int result = 0;
    while (scanf("%d",&num) != EOF) 
    { 
        for (int i = 0; i < num; i++)
        {
            scanf("%d ",&arr[i]);
            result += arr[i];
        }
        
        printf("%d\n",result);
    }
    return 0;
}