#!/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.match("(.)*h(.)*a(.)*c(.)*k(.)*e(.)*r(.)*r(.)*a(.)*n(.)*k(.)*", s):
        print "YES"
    else:
        print "NO"