Similarities

Write a function called find_common that takes in two lists of numbers. Return a list of all the numbers that are common between the two lists. The order of the list does not matter.

>>> find_common([1, 2, 3, 4], [3, 4, 5, 6])
[3, 4]
>>> find_common([9, 7, 5, 3, 1], [5, 6, 7])
[7, 5]
>>> find_common([1, 2, 3], [4, 5, 6])
[]