import numpy as np
num = [3, 4, 3]
print(type(num)) # <class 'list'>
num2 = num * 2
print(num2) # [3, 4, 3, 3, 4, 3]
arr = np.array(num)
print(type(arr)) # <class 'numpy.ndarray'>
arr2 = arr * 2
print(arr2) # [6 8 6]
tup = tuple(num)
print(type(tup)) # <class 'tuple'>
tup2 = tup * 2
print(tup2) # (3, 4, 3, 3, 4, 3)
se = set(num)
print(type(se)) # <class 'set'>
print(se) # {3, 4}
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