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: [98.834, 143.231, 35.995, -64.696]

Output: 53.341


Input: Consider Input: [18.155, 114.069, 197.871, -99.696, 201.18]

Output: 86.316


Input: Consider Input: [13.152, 243.169, 39.93, 23.017, 150.974]


Output: 94.048