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: [-24.857, -28.799, 240.99]

Output: 62.445


Input: Consider Input: [159.243, 17.964, 13.543, 175.402, -52.441, -34.741, 158.461]

Output: 62.49


Input: Consider Input: [244.073, -45.997, 10.616, 55.952, 44.348, 120.284]


Output: 71.546