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: [-4.749, 102.787, -45.229, 184.111, 221.888, 22.727, 20.887, 34.094]

Output: 67.065


Input: Consider Input: [93.433, 148.366, 19.269]

Output: 87.023


Input: Consider Input: [55.089, -43.122, 188.906]


Output: 66.958