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: [61.739, -99.854, -53.677]

Output: -30.597


Input: Consider Input: [219.336, -29.108, -41.612, 105.709]


Output: 63.581