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: [246.744, 206.484, 194.841]

Output: 216.023


Input: Consider Input: [109.109, -95.395, 5.04, 45.497, 56.443, -72.916]

Output: 7.963


Input: Consider Input: [64.523, 131.207, -30.223, -95.659]


Output: 17.462