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: [79.132, 226.507, 40.498, 100.658, 75.361]

Output: 104.431


Input: Consider Input: [233.742, -71.075]

Output: 81.333


Input: Consider Input: [129.69, -15.638, -59.745, 113.411, 3.389, -51.888, 155.336, 205.865]


Output: 60.052