#include <iostream>
using namespace std;
int ile,ile_l,liczby,suma=0;
int main()
{
cin >> ile;
if (ile>0 && ile<100)
{
for (int i=0; i<ile; i++)
{
cin >> ile_l;
for (int j=ile_l; j>0; j--)
{
cin >> liczby;
suma+=liczby;
}
cout << suma;
suma=0;
}
}
return 0;
}
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