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: [51.372, 141.276, 8.131, 168.539, 151.323]

Output: 104.128


Input: Consider Input: [224.567, -42.213, 232.017]

Output: 138.124


Input: Consider Input: [-31.233, 68.571, 195.487, 108.423, 212.897]


Output: 110.829


