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: [118.783, 191.64, 225.792, 160.903, 209.763, 39.225, 24.607]

Output: 138.673


Input: Consider Input: [29.292, 193.26, -48.646]

Output: 57.969


Input: Consider Input: [-89.27, 142.056, -3.074, 248.143, -81.367]


Output: 43.298