import java.util.*; public class Main { public static void main(String [] args) { Scanner Data = new Scanner(System.in); int n, a; int sum; int N; N=Data.nextInt(); while(N!=0) { sum=0; n=Data.nextInt(); while(n!=0) { a=Data.nextInt(); sum+=a; n--; } System.out.printf("%d\n",sum); N--; } } }