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: [-10.287, -0.47, 195.152, 209.845, -64.645, -82.959, 106.327]

Output: 50.423


Input: Consider Input: [-41.362, 123.84, 236.661, -43.042, 53.399, 15.001, 10.159, 38.886, 74.298, 167.559]

Output: 63.54


Input: Consider Input: [196.862, 110.822, 29.356, -60.967]


Output: 69.018