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: [134.631, 27.106]

Output: 80.868


Input: Consider Input: [166.542, 216.326, 98.969, -96.779, 33.532]

Output: 83.718


Input: Consider Input: [230.093, 14.77, 71.036, 144.89, -41.93]


Output: 83.772