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: [85.354, -22.629, 51.171, 238.376, 177.126, -90.135, -84.086, 175.426, -80.74]

Output: 49.985


Input: Consider Input: [-55.198, 36.097, 190.132]

Output: 57.01


Input: Consider Input: [-51.625, 100.25, -75.262, -53.896]


Output: -20.133