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: [145.697, -40.957, -46.926, -55.065, 177.211, 204.811, -94.192, -47.466]

Output: 30.389


Input: Consider Input: [135.575, 134.352, 209.54, 199.614, 87.027, 215.933, 49.266, 167.288, 164.589]

Output: 151.465


Input: Consider Input: [196.139, 54.042, 76.027, 103.571]


Output: 107.445