C++ :

#include<iostream>
#include<stdlib.h>
using namespace std;
int main() {
	int i,j,a,b,n;
	cin>>n;
	for(i=0;i<n;i++){
	int sum=0;
	cin>>a;
		for(j=0;j<a;j++){
			cin>>b;
			sum+=b;
		}
		cout<<sum<<endl;
		
	}
	
	return 0;
}