#Write a function ave_grade that has one parameter - number of courses 
#student takes per semester. Function reads the grade for each student and returns 
#the average grade per semester.

#Write a program (main) to test your function: program reads the number of 
#courses student takes per semester calls function ave_grade and prints 
#the average grade 
def ave_grade(num_courses):
	total=0
	for i in range(num_courses):
		grade=int(input("enter grade "))
		total=total+grade
	print("average is", total/num_courses)
	#or with return statement you will write
	#return  total/num_courses
def main():
	num_courses=int(input("enter number of courses "))
	ave_grade(num_courses)
	#or if you wrote a function with return statement you will write
	#print("average is ", ave_grade(num_courses))
main()