#include <iostream>
using namespace std;
int main()
{
	short n,m,sum,a;
	cin >> n;
	while (cin >> m)
	{
		for (int j = 1;j <= m;j++)
		{
			cin >> a;
			sum += a;
		}
		cout << sum << endl;
		sum = 0;
		n--;
		if (n == 0)
			return 0;
	}
}