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: [211.927, 190.941, -74.44, 7.991, -80.894, 48.291, 127.383, -51.774]

Output: 47.428


Input: Consider Input: [136.816, 121.886, 38.032, 81.322, -0.781, 112.95, 49.478, 219.21, -42.397]

Output: 79.613


Input: Consider Input: [126.317, 233.387, 122.748]


Output: 160.817