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: [-31.241, 73.981, 127.71, 166.275, 35.028, -10.432]

Output: 60.22


Input: Consider Input: [231.057, 71.527, 201.799, -5.17, -14.963, -35.693]

Output: 74.76


Input: Consider Input: [-10.37, -75.168, 32.201, 51.419, 4.792, 175.575, -6.252, 121.019, -88.724, 9.185]


Output: 21.368