import re
for _ in range(int(input())):
    n=input()
    if re.findall(r"^hackerrank.+",n):
        print(1)
    elif re.findall(r"^.+hackerrank$",n):
        print(2)
    elif re.findall(r"^hackerrank$",n):
        print(0)
    else:
        print(-1)