starts='^hackerrank.+'
ends='.+hackerrank$'
both='^(hackerrank).*\1?$'

sed -E \
  -e '1d' \
  -e "s/$starts/1/" \
  -e "s/$ends/2/" \
  -e "s/$both/0/" \
  -e '/1|2|0/! c\-1'

import re

for _ in range(int(input())):
    s=input()
    if re.search(r'^hackerrank(.*hackerrank)?$',s):
        print(0)
    elif re.search(r'^hackerrank',s):
        print(1)
    elif re.search(r'hackerrank$',s):
        print(2)
    else:
        print(-1)

let [n, ...s] = input.trim().split('\n')
s.forEach(i => {
 let [, start='', end=''] = i.match(/(.)*hackerrank(.)*/) || []
 console.log([[0, 1], [2, -1]][start.length][end.length])
})

[print((0 if s.endswith(h) else 1) if s.startswith(h) else (2 if s.endswith(h) else -1 )) for s, h in ((input(), 'hackerrank') for _ in range(int(input())))]

import re

def statusCode(text):
    match = re.search(pattern, text)
    if(match !=None):
        if(match.group(1) == searchKey):
            print('0')
        elif(match.group(2) == searchKey):
            print('1')
        elif(match.group(3) == searchKey):
            print('2')
    else:
        print('-1')
      
searchKey = 'hackerrank'
pattern = r'(?:^({0})$|(^{0})|({0}$))'.format(searchKey)
text = [statusCode(input()) for i in range(int(input()))]