#write a function replace_item that has two parameters
#list of itegers and additional iteger called num

#function counts the number of times num appear in the list and replace
#num with the counter value

#function returns the number of items num appear in the list

#write main to test your function on TWO different lists

import random
def replace_item(my_list, num):
	counter=my_list.count(num)
	size=len(my_list)
	for i in range(size):
		if(my_list[i]==num):
			my_list[i]=counter
	return counter	
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)
	num1=random.randint(0,3)
	num2=random.randint(0,3)
	print(num1, num2)

	res1=replace_item(list1, num1)
	print(num1, "appears", res1, "times")
	print("updated list1 is", list1)

	res2=replace_item(list2, num2)
	print(num2, "appears", res2, "times")
	print("updated list1 is", list2)


main()