#include
using namespace std;
int check =0;
void check_subseq(int input[],int output[],int i,int j,int len){
if(i==len){
int sum =0;
for(int t =0;t<=j;t++){
sum = sum + output[t];
}
if(sum==0){
check++;
}
return;
}
output[j]=input[i];
check_subseq(input,output,i+1,j+1,len);
check_subseq(input,output,i+1,j,len);
}
int main() {
int test;
cin>>test;
while(test–){
int len;
cin>>len;
int arr[100000];
int brr[100000];
for(int i=0;i<len;i++){
cin>>arr[i];
}
//len would become an important
check_subseq(arr,brr,0,0,len);
if(check){
cout<<"Yes";
}
else{
cout<<"No";
}
check = 0;
cout<<endl;
}
}
