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: [128.472, 149.361, 71.023, -96.651]

Output: 63.051


Input: Consider Input: [127.522, 232.86, 46.593]

Output: 135.658


Input: Consider Input: [140.332, 92.06]


Output: 116.196