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: [-77.226, 44.49]

Output: -16.368


Input: Consider Input: [-93.372, 58.665, 230.024, 208.635]

Output: 100.988


Input: Consider Input: [-77.065, 216.743, 212.04, 161.573, 195.263]


Output: 141.711