#!/bin/python

import sys
import re

q = int(raw_input().strip())
for a0 in xrange(q):
    s = raw_input().strip()
    pattern = re.compile(".*h.*a.*c.*k.*e.*r.*r.*a.*n.*k.*")
    match =re.search(pattern, s)
    if match == None:
        print 'NO'
    else:
        print 'YES'