#Write a program that reads one integer
#if the integer is even, the program then reads
#prices for 3 items and finds a total purchase amount
#otherwise, the program prints the last digit of the number

#Input: one integer first, and then could be 3 additional floats
#Even number is a number that evenly divisible by 2, num%2 will 
#be 0 for even numbers

num=int(input("enter integer "))

if(num%2==0):
	price1=float(input("enter first price "))
	price2=float(input("enter second price "))
	price3=float(input("enter third price "))
	total=price1+price2+price3
	print("The total price is ", total)

else:
	if(num>=0):
		last_digit=num%10
		print("last digit", last_digit)
	else:
		last_digit=(-num)%10
		print("last digit", last_digit)