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: [196.683, 97.538, 247.799, 203.036, 203.369, -15.737]

Output: 155.448


Input: Consider Input: [26.595, 220.402, -36.236, -79.382, -17.51, -71.282]

Output: 7.098


Input: Consider Input: [-75.179, 16.007, 168.16, -50.911, -93.426, 16.977, 148.591, 46.605, -61.756]


Output: 12.785