#include <iostream>
#include <stack>
#include <cmath>
#include <vector>
#include <string.h>
#include <queue>
#include <stdio.h>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#define int long long
using namespace std;
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
signed main()
{
	int T;
	cin >> T;
	int ans = 0, a, n = 0;
	while(T--)
	{
		ans = 0;
		cin >> n;
		for(int i = 1; i <= n; i++)
		{
			cin >> a;
			ans += a;
		}
		cout << ans << endl;
	}
	return 0;
}