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: [109.109, -95.395, 5.04, 45.497, 56.443, -72.916]

Output: 7.963


Input: Consider Input: [-53.388, 31.309, 19.079, -16.926, 242.421, 210.599]

Output: 72.182


Input: Consider Input: [80.347, 61.158, 71.219, 219.439, 152.642, 153.907, 215.096, 179.864, 241.643, 138.374]


Output: 151.369