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# basic list functionality x = [1, 2, 3 * 4] print(x) x[0] = 4 print(x) x[1] += -4 print(x) x.append(5) print(x) f = x.append f(4) print(x) x.extend([100, 200]) print(x) x.extend(range(3)) print(x) x += [2, 1] print(x) print(x[1:]) print(x[:-1]) print(x[2:3])