Hi, here's your problem today. This problem was recently asked by Microsoft:

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You are given an array of integers. Return the largest product that can be made by multiplying any 3 integers in the array.

Example:

[-4, -4, 2, 8] should return 128 as the largest product can be made by multiplying -4 * -4 * 8 = 128.

Here's a starting point:

<pre lang=py>
def maximum_product_of_three(lst):
  # Fill this in.

print maximum_product_of_three([-4, -4, 2, 8])
# 128
</pre>