#include <iostream>
using namespace std;

const int maxn=1005;
int a[maxn];

int main(){
	int n; cin>>n;
	while(n--){
		int m; cin>>m;
		int sum=0;
		for(int i=1;i<=m;++i){
			cin>>a[i];
			sum+=a[i];
		}
		cout<<sum<<endl<<endl;
	}
}