#include<bits/stdc++.h>
#define ll long long int
#define BOOSTER std::ios_base::sync_with_stdio(NULL);cin.tie(0);cout.tie(0);
#define REPEAT int t;while(t--)
using namespace std;
int main(){
BOOSTER
REPEAT{
ll n,i,temp;
cin>>n;
ll a[n];
for(i=0;i<n;i++)
{
cin>>a[i];
}
temp=accumulate(a,a+n,0);
cout<<floor(temp);
/*if((floor(temp)/n)<4){
cout<<"No"<<endl;
}else{
cout<<"Yes"<<endl;
}*/
}
}
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