import random


# function go here

def yes_no(question):
    """Checks user response to a question is yes / no (y/n), return 'yes' or 'no'"""

    while True:

        response = input(question).lower()

        # check the user says yes / no / y / n
        if response == "yes" or response == "y":
            return "yes"
        elif response == "no" or response == "n":
            return "no"
        else:
             print("please enter yes / no")


def instructions():
    """Prints instructions"""

    print("""
    *** Instructions ***
    
    Roll the dice and try to win!
         """)


def int_check(question, low_number, high_number):
    """Checks user enters a number between the low and high number"""

    error = f"Please enter a number between {low_number} and {high_number}."

    while True:
        try:
            response = int(input(question))

            if response < low_number or response > high_number:
                print(error)
            else:
                return response

        except ValueError:
            print(error)

# Main routine

# ask the user if they want instructions (check they say yes / no)
want_instructions = yes_no("Do you want to see the instructions? ")

# Display the instructions if the user wants to see them...
if want_instructions == "yes":
    instructions()


print()
rounds = int_check("How many rounds do you want to play? ", 1, 10)
print(f"You are playing {rounds} rounds")

number_1 = random.randrange(1, 10)
number_2 = random.randrange(1, 10)

correct_answer = number_1 * number_2

user_answer = int_check(f"what is {number_1} x {number_2}? ",1, 100)

if correct_answer == (user_answer):
    print("Correct!")
else:
    print("Incorrect!")








print("The program has ended.")