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: [-49.786, 238.124, -20.697, 32.014]

Output: 49.914


Input: Consider Input: [225.697, 75.029]

Output: 150.363


Input: Consider Input: [122.498, 163.253, 127.792, 176.377, 2.011, 163.808]


Output: 125.956