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: [58.371, 4.131]

Output: 31.251


Input: Consider Input: [1.435, 246.462, 5.433, -3.093, 31.948, 113.344, 41.816, 43.437, -93.129, 116.292]

Output: 50.395


Input: Consider Input: [222.157, 29.076, 35.33, 65.954, 111.359, 50.22]


Output: 85.683