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: [227.601, -61.961, 78.822, -29.52, 126.039, -44.098, 112.374, -19.23, 69.758]

Output: 51.087


Input: Consider Input: [-98.163, -66.763, 149.544, -89.893, -10.155]

Output: -23.086


Input: Consider Input: [229.28, 202.632, 129.717, 211.459, 203.204]


Output: 195.258