#include <iostream>
using namespace std;
int t , n, s;
int suma=0;
int tab[20];
int main(int argc, char** argv) {
cin>>t;
for(int i=1;i<=t;i++) {
cin >> n;
do {
cin>>tab[s];
s++;
}while(s<n);
for(int i=0;i<n;i++) {
suma+=tab[i];
}
cout<<suma<<endl;
suma=0;
s=0;
}
return 0;
}
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