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: [185.805, 8.01, 151.056, 35.572, 51.884, 217.1, -0.547, 8.171]

Output: 82.131


Input: Consider Input: [-96.229, 200.453]

Output: 52.112


Input: Consider Input: [22.306, 72.768, 218.947, 52.973, 100.121, 157.59, -92.109]


Output: 76.085