#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

bool checkWord(string word){
    string s = "hackerrank";
    bool isMatch = false;
    for(int i = 0; i < s.length(); i++){
        for(int j = 0; j < word.length(); j++){
            if(word[j] == s[i]){
                isMatch = true;
            }
            else{
                isMatch = false;
            }
        }
    }
    return isMatch;
}

vector<string> getResults(vector<string> words){
    vector<string> results;
    string tmpstr = "";
    for(int i = 0; i < words.size(); i++){
        if(checkWord(words[i])){
            tmpstr = "YES";
        }
        else{
            tmpstr = "NO";
        }
        results.push_back(tmpstr);
    }
    return results;
}


bool isQuit(char c){return c=='q';}

vector<string> getInput(){
    int size = 0;
    string inputword;
    vector<string> inputwords;
    cin >> size;
    while(cin >> inputword){
        if(!isQuit(inputword[0]))
            inputwords.push_back(inputword);
        else
            break;
    }
    return inputwords;
}
void print(vector<string> words){
    for(int i = 0; i < words.size(); i++){
        cout << words[i] << endl;
    }
}

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    print(getResults(getInput()));
    return 0;
}