In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.

Input: Consider Input: [-44.977, 79.906, -20.036]

Output: 4.964


Input: Consider Input: [169.131, -79.809, 119.898, 174.146, -1.167, 89.734, 155.318, -26.905, 182.476, 164.085]

Output: 94.691


Input: Consider Input: [91.783, 3.103, 38.462, 30.526]


Output: 40.969