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();
            // your code goes here
              String az = "[a-zA-Z0-9]*";
     String pat = az+"h"+az+"a"+az+"c"+az+"k"+az+"e"+az+"r"+az+"r"+az+"a"+az+"n"+az+"k"+az;
	System.out.println( s.matches(pat )?"YES":"NO");
        }
    }
}