import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int t = in.nextInt(); for(int i = 0; i < t;i++){ int s = in.nextInt(); long num = 0; for(int j = 0; j < s;j++){ if(in.hasNext()){ num += in.nextInt(); } } System.out.println(num); } } }