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: [39.88, 58.489, 225.343, 105.008, 210.581, 35.577]

Output: 112.48


Input: Consider Input: [2.81, 52.99, 55.279, 75.682, 73.835, 148.077, -54.162, 112.112]

Output: 58.328


Input: Consider Input: [138.45, -5.481, 179.684, 147.54, 220.133, -36.663]


Output: 107.277