import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int q = in.nextInt();
    for(int a0 = 0; a0 < q; a0++){
      String s = in.next();
      if (s.matches("^.*h.*a.*c.*k.*e.*r.*r.*a.*n.*k.*$")) {
        System.out.println("YES");
      } else {
        System.out.println("NO");
      }
    }
  }
}