Simple Maths Quiz

from random import randint

#initialise variables
with open('highscore.txt','r') as f:
    highscore = int(f.read())

print('The current highscore is {}'.format(highscore))
cnt = True
question = 0

print('Welcome to the maths quiz')
score = 0
while cnt:
    question += 1
    a = randint(1,3)
    b = randint(1,3)
    c = randint(1,3)
    answer = a * b * c
    response = int(input('{}. What is the product of {} * {} * {}?'.format(question,a,b,c)))
    if answer == response:
        score += 1
        print('Correct, Scrore is {}'.format(score))
    else:
        print('Incorrect, Correct answer is {}'.format(answer))
        cnt = False

if score > highscore:
    highscore = score
    with open('highscore.txt','w') as f:
        print('A new Highscore!')
        f.write(str(highscore))


print('Highscore is {}'.format(highscore))