#include <stdio.h>
int main(void){
    int a;
    int i, sum;
    int n, q = 0, s;
    scanf_s("%d", &s);
    if (q < s)
    {
        q++;
        while (scanf_s("%d", &n) != EOF)
        {
            sum = 0;
            for (i = 0; i < n; i++)
            {
                scanf_s("%d", &a);
                sum += a;
            }
            printf("%d\n", sum);

        }
    }
    else
        return 0;
    return 0;
}