#write a function ave_3 that has 3 parameters and function returns
#average of function parameters

#write a program that reads 6 ints
#program finds average of first 3 ints, and average of 4th, 5th 
#and 6th input

def ave_3(a,b,c):
	#a,b and c are called - FORMAL PARAMETERS
	#they are placeholders to write function definition

	#result=(a+b+c)/3
	#return result
	
	#we don't need variable result but instead 
	#calculations could be done in return statement

	return (a+b+c)/3

def main():
	
	for i in range(2):
		a=int(input("enter int "))
		b=int(input("enter int "))
		c=int(input("enter int "))

		#these a,b and c are NOT the same
		#as a, b and c in the function

	#	res=ave_3(a,b,c)
	#	print("their average is", res)
	
		print("their average is", ave_3(a,b,c))
4		#we can put function call inside print statement
main()