#!/bin/python

import sys
import re

q = int(raw_input().strip())
for a0 in xrange(q):
    s = raw_input().strip()
    # your code goes here
    r = re.findall('.*h.*a.*c.*k.*e.*r.*r.*a.*n.*k.*', s)

    print 'YES' if len(r) else 'NO'