#functions
#all functions will have name, parameters (some function might not have 
#parameters - empty list, for example main, doesn't have any parameters
#functions can return values
#but some function doesn't return any values, for example, main

#write a function final_price that has two parameters
#original price and tax (as an integer). Function returns the final price 
#after tax is applied

#write a program (main) that first reads the number of people came to the 
#store. For each person, the program reads price and tax
#and finds the final price for each person and the total price for all 
#customers

def final_price(price, tax):
	#price and tax are FORMAL PARAMETERS - placeholders
	final=price+price*tax/100
	return final
	#different way to write it:
	#return (price+price*tax/100)
def main():
	num=int(input("enter number of customers "))
	total=0
	if(num>0):
		for i in range(num):
			price=float(input("enter price "))
			tax=int(input("enter tax as an integer "))
			result=final_price(price, tax) #function call
			print("person",i+1,"paid", result)
			total=total+result
		print("total", total)
			

	else:
		print("nobody came to the store today")

main()