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: [-66.271, 56.586, -21.072, 136.915, 54.951, 112.054]

Output: 45.527


Input: Consider Input: [80.285, 75.631, 5.715, -68.695, 134.225, 22.744, 63.203, 136.862, 60.995]

Output: 56.774


Input: Consider Input: [57.867, -19.488, 101.33, 222.696, -50.347]


Output: 62.412