>>> mocniny = [i*i for i in range(10)]
--> [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

>>> suda = [i for i in range(20) if i%2==0]
--> [0, 2, 4, 6, 8, 10, 12, 14, 16, 18]

>>> sez=[1,5,3]
>>> l=[n*m for n in sez for m in range(4)]
--> [0, 1, 2, 3, 0, 5, 10, 15, 0, 3, 6, 9]

>>> kvadrat = [[n,n*n] for n in range(5)]
--> [[0, 0], [1, 1], [2, 4], [3, 9], [4, 16]]
