1722A.cpp

#include<bits/stdc++.h>
using namespace std;
int main(){
    int t;
    cin>>t;
    while(t--){
        int n;
        cin>>n;
        string s, t="Timur";
        cin>>s;
        sort(s.begin(), s.end());
        sort(t.begin(), t.end());
        
        if(s==t){
            cout<<"YES";
        }
        else{
            cout<<"NO";
        }
        cout << endl;
    }
}