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: [93.72, 13.366, -44.452, -29.011, 56.593, 5.272, -20.162, 160.282, 44.017]

Output: 31.069


Input: Consider Input: [226.383, 37.978, 174.444, 117.212]

Output: 139.004


Input: Consider Input: [204.675, 78.42, 216.305]


Output: 166.467