#!/bin/python3

import sys
import re

q = int(input().strip())
for a0 in range(q):
    s = input().strip()
    
    pattern = ".*h.*a.*c.*k.*e.*r.*r.*a.*n.*k.*"
    m = re.search(pattern, s)
    if m is not None:
        print("YES")
    else:
        print("NO")