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: [-59.526, 55.871, 118.248, 197.073]

Output: 77.916


Input: Consider Input: [219.336, -29.108, -41.612, 105.709]

Output: 63.581


Input: Consider Input: [-55.955, 95.939, 147.531, 78.429, -66.582, -73.494, -88.544]


Output: 5.332


