print('Hello World')
#functions go here
def yes_no(question):
    """Checks users response to a question is yes/no (y/n) and returns 'yes' or 'no'"""
    while True:
        response=input(question).lower()
        #Check if the user says yes/no/y/n
        if response=="yes" or response=='y':
            return "yes"
            break
        elif response=="no" or response=='n':
           return "no"
        else:
            print('please type yes or no')


#Main routine
#Ask the user if they want to see the instructions (check if they want to ussing yes/no)

want_instructions=yes_no('Would you like to see the instructions?').lower()
print(f'you chose {want_instructions}')
#Disply the instructions if the user agreed to seeing them...