#include <iostream>
using namespace std;
int main()
{
int d;
int n;
int k;
int suma;
cin >> d;
while ( d > 0 )
{cin >> n;
suma=0;
while ( n > 0)
{
cin >> k;
suma = suma + k;
n --;
}
cout << suma <<"\n";
d --;
}
}
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