#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001
	 
int main(){
	
	int T;
	cin>>T;
	
	rep(_,T){
		int n;
		cin>>n;
		
		vector<int> a(n*2);
		rep(i,n*2)cin>>a[i];
		
		if(a[0]==1&&a.back()==n)cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
	
	return 0;
}