# functions go here

def yes_no(question):
    ...

def instructions():
    ...

def int_check():
    ...

# 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()
game_goal = int_check()
print(game_goal)