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: [140.332, 92.06]

Output: 116.196


Input: Consider Input: [-63.278, 115.92, 179.699, 73.157]

Output: 76.374


Input: Consider Input: [-25.148, 67.249, 58.27, -3.073]


Output: 24.325