#Mini Quiz 4 with functions
#Write a function total that has 4 parameters:
#number of pounds (integer), price per pound (float), 
#tax (integer), and additional integer, tax_indicator

#Write a program that finds total purchase for 2 
#customers

def main():
	#processing first customer
	pounds=int(input("enter number of pounds "))
	price=float(input("price per pound "))
	tax=int(input("Tax as integer "))
	tax_indicator= int(input("1 - Taxable 0 - Not taxable "))

	valid=pounds>0 and price>0 and tax>=0 
	valid_indicator=tax_indicator ==1 or tax_indicator==0
	valid_input=valid and valid_indicator
	#Function CALL
	if(valid_input):
		total_customer1=total(pounds, price, tax, tax_indicator)
		print("customer 1 pay ", total_customer1)
	else:
		print("INPUT NOT VALID")
	#processing second customer
	pounds=int(input("enter number of pounds "))
	price=float(input("price per pound "))
	tax=int(input("Tax as integer "))
	tax_indicator= int(input("1 - Taxable 0 - Not taxable "))

        #Function CALL
	total_customer2=total(pounds, price, tax, tax_indicator)
	print("customer 2 pay ", total_customer2)


def total(pounds, price, tax, tax_indicator):
	if(pounds<=5):
		discount=0
	elif(pounds<=10):
		discount = 10/100
	else:
		discount = 20/100

	
	total=pounds*price*(1-discount)*(1+tax*tax_indicator/100)	
	return total


main()