#!/bin/python

import sys
import re


q = int(raw_input().strip())
for a0 in xrange(q):
    s = raw_input().strip()
    # your code goes here

    if (re.search('.*h.*a.*c.*k.*e.*r.*r.*a.*n.*k.*',s,flags=0)):
        print "YES"
    else:
        print "NO"