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: [212.456, 6.972, -59.399, -83.342, 215.038, -97.851]

Output: 32.312


Input: Consider Input: [25.58, 99.319, 165.429]

Output: 96.776


Input: Consider Input: [38.459, -46.303, 155.479, 145.619, 154.178, 205.646, -99.859]


Output: 79.031