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: [66.037, 30.958, 124.853]

Output: 73.949


Input: Consider Input: [82.748, 43.804, -13.469, 226.705, -7.478]

Output: 66.462


Input: Consider Input: [124.51, 157.224, -39.067, 15.401, -46.207]


Output: 42.372