#Write a function def separate(grades) that has one parameter - list of grades in the 
#class. The function creates and RETURNS 3 new lists - list of failing grades (grades 
#below 60), list of A grades (90 and above) and the rest of the grades (between 60 and 89). Write 
#a program that randomly generates the list of grades of size 15, calls function separate, 
#and then prints THREE lists: failing grades, list of A grades, and the rest of the 
#grades. 

import random

def separate(grades):
	fail_grade=[]
	pass_NoA_grade=[]
	list_A=[]
	
	size=len(grades)
	for i in range(size):
		if(grades[i]<60):
			fail_grade.append(grades[i])
		elif(grades[i]>=90):
			list_A.append(grades[i])
		else:
			pass_NoA_grade.append(grades[i])
	return fail_grade, pass_NoA_grade, list_A
def main():
	grades=[]
	for i in range(15):
		grades.append(random.randint(0,100))
	print(grades)
	fail_grade, pass_NoA_grade, list_A=separate(grades)
	print(fail_grade)
	print(pass_NoA_grade)
	print(list_A)
main()