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: [-53.388, 31.309, 19.079, -16.926, 242.421, 210.599]

Output: 72.182


Input: Consider Input: [232.39, 28.124, 179.446, 228.788, 90.985, 60.823, 92.908]

Output: 130.495


Input: Consider Input: [80.136, 12.031, -72.917, 157.456]


Output: 44.176