.append() example.>>> stooges = ['Moe','Larry','Curly']>>> stooges.append('Shemp')>>> print stooges['Moe', 'Larry', 'Curly', 'Shemp'] + example.>>> A = [0,1]>>> B = [2,4]>>> C = A+B>>> print C[0, 1, 2, 4] len() example.1)>>> A = [0,1]>>> len(A)2 2)>>> B=['a',['b',['c']]]>>> len(B)2#nested된거 신경쓰지 않음, original만