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: [245.271, 40.965, 133.913, 212.104]

Output: 158.063


Input: Consider Input: [-92.0, 108.814, 164.207, 94.26, 33.74]

Output: 61.804


Input: Consider Input: [107.878, 206.481, 203.641, -12.48, 175.938]


Output: 136.292


