#write a function remove_item that has two parameters: list1 and list2
#function removes from list1 all items that appear in list2

#write main to test your function: in main we will randomly generate two 
#lists and use function remove_item to change first list accordingly

#example: list1=[3, 5, 8], list2=[1,2,3]
#function will remove 3 from list1 so list1 will become [5,8]

import random

def remove_item(list1, list2):
	size1=len(list1)
	size2=len(list2)

	for i in range(size2):
		if(list2[i] in list1):
			list1.remove(list2[i])
def main():
	size1=random.randint(5,15)
	size2=random.randint(5,15)
	list1=[]
	list2=[]
	for i in range(size1):
		list1.append(random.randint(0,3))
	print(list1)
	for i in range(size2):
		list2.append(random.randint(0,3))
	print(list2)
	
	remove_item(list1, list2)
	print("list 1 after removal")
	print(list1)
main()