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: [117.913, 21.456, 98.401, -32.801, -20.798, 182.745, 201.277]

Output: 81.17


Input: Consider Input: [-44.471, 208.445, 208.318, -34.134]

Output: 84.54


Input: Consider Input: [167.364, -16.137, 6.884]


Output: 52.704