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: [-49.786, 238.124, -20.697, 32.014]

Output: 49.914


Input: Consider Input: [-6.992, -36.177, -95.203, 87.142]

Output: -12.808


Input: Consider Input: [82.702, -59.864, -41.021, 73.348, 172.105, 85.857, 96.462, 15.883, -64.119, 124.654]


Output: 48.601