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: [116.268, 173.27, 228.827, 52.695, 66.445, -34.051, 152.137]

Output: 107.942


Input: Consider Input: [245.466, 19.262, 199.878]

Output: 154.869


Input: Consider Input: [-62.806, -85.853, -62.331, 212.246, 130.894, 120.109]


Output: 42.043