#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000000
#define Inf64 1000000000000000001



int main(){
	
	int _t;
	cin>>_t;
	rep(_,_t){
		int n;
		cin>>n;
		int ans = 0;
		rep(i,n){
			int f;
			cin>>f;
			ans += f;
		}
		cout<<ans<<endl;
	}
	cout<<endl;
	return 0;
}