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The + operator concatenates lists:
>>> a = [1, 2, 3]>>> b = [4, 5, 6]>>> c = a + b>>> print c[1, 2, 3, 4, 5, 6]
Similarly, the * operator repeats a list a given number of times:
>>> [0] * 4[0, 0, 0, 0]>>> [1, 2, 3] * 3[1, 2, 3, 1, 2, 3, 1, 2, 3]
The first example repeats [0] four times. The second example repeats the list [1, 2, 3] three times.
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