#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
int ileT,ileL;
cin>>ileT;
for(int i=0;i<ileT;i++)
{
cin>>ileL;
int suma=0;
int tablica[ileL];
for(int j=0;j<ileL;j++)
{
scanf("%d",&tablica[ileL]);
suma+=tablica[ileL];
}
cout<<suma<<endl;
}
return 0;
}
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