#include <iostream>
using namespace std;
int main() {
int t, n, a;
cin >> t;
int suma[t-1];
for(int x = 0 ; x < t ; x++)
{
cin >> n;
for(int z = 0 ; z < n ; z++)
{
cin >> a;
suma[x] = suma[x] + a;
}
}
for(int x = 0 ; x < t ; x++)
{
cout << suma[x] << endl;
}
return 0;
}
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