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: [126.453, 169.516, 109.837, 208.695, 113.906, 56.894, 171.345, 126.81]

Output: 135.432


Input: Consider Input: [149.451, 230.29, 56.327, -72.328, -73.276, -90.669, 206.191, 87.481]

Output: 61.683


Input: Consider Input: [215.161, 124.785, 203.26, 121.709, 161.316, 149.034, 108.509, -30.096, -63.199, 30.95]


Output: 102.143