#!usr/bin/python3
import random

def lst1(list):
	list = [[random.random() for _ in range(3)] for _ in range(3)]
	return(list)

def lst2(list):
	for row in list:
		row.append(random.random())
	templist = [random.random() for _ in range(4)]
	list.append(templist)
	return(list)

def lst3(list):
	for row in list:
		for _ in range(2):
			row.append(random.random())
	return(list)

def lst4(list):
	for _ in range(2):
		templist = [random.random() for _ in range(6)]
		list.append(templist)
	return(list)

def main():
	list1=lst1(list)
	print(list1)
	print('-----------')
	list2=lst2(list1)
	print(list2)
	print('-----------')
	list3=lst3(list2)
	print(list3)
	print('-----------')
	list4=lst4(list3)
	print(list4)
if __name__=="__main__":
	main()