highscorefile = open("highscore.txt", "r")    #high score is retrieved
highscore = int(highscorefile.read())
highscorefile.close()

if score >= highscore:                        #high score is adjusted
    highscore = score

highscorefile = open("highscore.txt", "w")    #highscore is saved in highscore.txt
highscorefile.write(f"{highscore}")
highscorefile.close()

highscorefile = open("highscore.txt", "r")    #(new) high score is displayed
print(f'The highscore is {highscorefile.read()}! ')
highscorefile.close()