#Write a program that generates a list of grades (ints between 0 and 
#100) Program creates TWO new lists: fail_grade and pass_grade. Program 
#finds the number of failing and the number of passing grades and the 
#average grade in each category 

#functions:make_list, fail_pass, average

import random

def make_list(size, min_limit, max_limit):
	my_list=[]
	for i in range(size):
		n=random.randint(min_limit, max_limit)
		my_list.append(n)

	return my_list

def pass_fail(my_list):
	pass_grade=[]
	fail_grade=[]
	for i in range(len(my_list)):
		if(my_list[i]>=60):
			pass_grade.append(my_list[i])
		else:
			fail_grade.append(my_list[i])

	return pass_grade, fail_grade
	
def average(my_list):
	sum=0
	length=len(my_list)
	for i in range(length):
		sum+=my_list[i]
	
	ave=sum/length
	return ave

def main():
	size=int(input("size of the class "))
	grades=make_list(size, 0,100)
	print(grades)
	
	pass_grade, fail_grade=pass_fail(grades)
	l_pass=len(pass_grade)
	l_fail=len(fail_grade)
	if(l_pass>0):
		print(pass_grade)
		ave=average(pass_grade)
		print(ave)
	else:
		print("no passing grades")

	if(l_fail>0):
		print(fail_grade)
		print(average(fail_grade))
	else:
		print("no failing")
main()