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: [122.737, 189.477, -4.853, 150.031, 126.296, 240.809, 204.743, 29.178]

Output: 132.302


Input: Consider Input: [85.011, -20.439, 195.195, 114.286]

Output: 93.513


Input: Consider Input: [-94.407, 128.187, -51.521, 7.074, 145.756, 208.266, 173.062]


Output: 73.774