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: [-95.427, -98.447]

Output: -96.937


Input: Consider Input: [-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]

Output: 4.437


Input: Consider Input: [-31.29, 31.03]


Output: -0.13