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: [182.441, 58.468, 209.229, 249.908, 32.346, 30.442]

Output: 127.139


Input: Consider Input: [219.336, -29.108, -41.612, 105.709]

Output: 63.581


Input: Consider Input: [138.55, 148.997]


Output: 143.774


