#include <bits/stdc++.h>
using namespace std;
 
int main() {
 
	long long t = 1, n = 0, q = 0, m = 0, num = 0;
 
	cin>>n;
 
	while(n){
 
		vector <long long> v, aux;
 
		n--;
		cin>>m;
		while(m--){
			cin>>num;
			v.push_back(num);
		}
 
		sort(v.begin(), v.end());
 
		aux.push_back(v.front());
		t = aux.front();
		for(int i = 1; i < v.size(); i++){
			aux.push_back(aux[i-1] + v[i]);
			if(t >= v[i-1] && t <= aux[i-1]){
				t = aux[i]+1;
			}
		}
 
		cout<<t<<endl;
 
 
	}
 
	return 0;
}

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MwoxCjEKMQoyCjMKMiAxIDU=

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