#include <iostream>
#include <algorithm>
using namespace std;
int a[33];
int get(int l,int r){
	int res=0;
	for(int i=l;i<=r;i++) if(a[i]>a[1]) res++; 
	return res;
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0),cout.tie(0);
	int t;
	cin >> t;
	while(t--){
		for(int i=1;i<=32;i++)
			cin >> a[i];	
		if(get(1,32)==0) cout << "1" << endl;
		else if(get(1,32)==1) cout << "2" << endl;
		else if(get(1,16)<=1) cout << "4" << endl;
		else if(get(1,8)<=1) cout << "8" << endl;
		else if(get(1,4)<=1) cout << "16" << endl;
		else cout << "32" << endl;
	}
	return 0;
}