#lab program 4

import random

def make_list_random(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 separate(my_list):
	a_list=[]
	fail_list=[]
	other_list=[]
	length=len(my_list)
	for i in range(length):
		if(my_list[i]<60):
			fail_list.append(my_list[i])
		elif(my_list[i]>=60 and my_list[i]<90):
			other_list.append(my_list[i])
		else:
			a_list.append(my_list[i])

	return a_list,fail_list,other_list

def main():
	
	my_list=make_list_random(15, 0,100)
	print(my_list)

	a_list,fail_list,other_list = separate(my_list)

	if(len(a_list)>0):
		print(a_list)
	else:
		print("no A grades")

	if(len(fail_list)):
		print(fail_list)
	else:
		print("no fail grades")

	if(len(other_list)):
		print(other_list)
	else:
		 print("no grades between 60 and 90")

main()