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: [159.381, -84.046]

Output: 37.668


Input: Consider Input: [24.119, 239.006, 239.873, 236.27, 134.34]

Output: 174.722


Input: Consider Input: [-37.484, 244.825, 127.062, -96.561, 136.234, 77.358]


Output: 75.239