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: [134.631, 27.106]

Output: 80.868


Input: Consider Input: [77.498, 234.955, 184.005, -48.344, 113.167]

Output: 112.256


Input: Consider Input: [116.091, 75.192, 205.218, 85.226, 20.969, 95.001, 27.421]


Output: 89.303