import static java.lang.System.err;

public class Main {
	public static void main(String[] args) {
		java.io.PrintWriter out = new java.io.PrintWriter(System.out);
		new Main(out);
		out.flush();
		err.flush();
	}

	public Main(java.io.PrintWriter out) {
		try (java.util.Scanner sc = new java.util.Scanner(System.in)) {
			int T = sc.nextInt();
			while(T --> 0) {
				int N = sc.nextInt();
				int sum = 0;
				for (int i = 0;i < N;++ i) sum += sc.nextInt();
				out.println(sum);
			}
		}
	}
}