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: [132.047, -2.027, 97.041, -49.199, 29.646, 3.384, 104.121, 237.857, 5.555]

Output: 62.047


Input: Consider Input: [-79.521, 169.962, 120.036, -71.612, -53.261, -90.734, -35.559, 140.419, 25.016]

Output: 13.861


Input: Consider Input: [99.431, -0.986, -97.815, 83.097, 183.282, 61.416, -26.114, -8.399, -8.236, -67.816]


Output: 21.786