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: [209.13, -12.632, 247.489, 55.492, 8.967, -90.158, 193.743]

Output: 87.433


Input: Consider Input: [85.925, 218.341, -55.232, 136.11, 243.387, 98.158, 183.742, 85.875, 124.291, -95.213]

Output: 102.538


Input: Consider Input: [100.115, -51.525, -19.534, 80.669, 209.359, -4.132, 35.93]


Output: 50.126