#include <iostream>
using namespace std;
int main()
{
int t;
cin>>t;
for(int i=1; i<=t; i++)
{
int t2;
cin>>t2;
int liczby[t2];
int suma=0;
for(int j=0; j<t2; j++)
{
cin>>liczby[j];
suma+=liczby[j];
}
cout<<suma<<endl;
}
return 0;
}
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