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