#
#  Quiz the user on their elementary addition and multiplication skills.
#
import random

MIN = 1
MAX = 10
NUM_QUESTIONS = 10

#
#  Randomly select an operator, either + or *.
#
#  Parameters: None
#
#  Returns: A string, either "+" or "*"
#
def randomOperator():
  # Randomly select either 0 or 1
  i = random.randrange(0, 2)

  # If the value was 0, it represents +
  if i == 0:
    return "+"

  # If the value was 1, it represents *
  if i == 1:
    return "*"

#
#  Create a random question involving two small integers and either addition
#  or multiplcation.
#
#  Parameters: None
#
#  Returns: 
#    - the value to the left of the operator
#    - the operator that was randomly selected
#    - the value to the right of the operator
#    - the correct answer to the question
#
def createQuestion():
  # Pick two random integers
  left = random.randrange(MIN, MAX + 1)
  right = random.randrange(MIN, MAX + 1)

  # Pick a random operator
  operator = randomOperator()

  # Compute the correct answer for the question
  if operator == "+":
    correct_answer = left + right
  if operator == "*":
    correct_answer = left * right

  # Return the left operand, operator, right operand and the correct answer
  return left, operator, right, correct_answer


def main():
  # Initialize the count of the number of correct answers
  count = 0

  for qnum in range(1, NUM_QUESTIONS + 1):
    # Create and display the question
    left, op, right, correct = createQuestion()
    print(f"Question {qnum}: What is {left} {op} {right}?")

    # Read the user's answer
    user_ans = int(input())

    # Report whether or not the user's answer was correct
    if user_ans == correct:
      print("That's correct!")
      count = count + 1
    else:
      print(f"Nope, the correct answer is {correct}.")

  # Report how many questions the user answered correct
  print(f"You answers {count} out of {NUM_QUESTIONS} answers correctly.")

# Call the main function
main()