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: [199.974, 2.205, 197.996, 172.426, 182.153, 42.045, 53.238, 18.021, 83.903]

Output: 105.773


Input: Consider Input: [30.224, 63.76, 96.876, 149.052, -38.974, 48.35, 133.493, 142.787, 10.958]

Output: 70.725


Input: Consider Input: [-91.46, 200.185, 182.354, -82.67, 223.393, 101.705, -43.714, -58.007]


Output: 53.973