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: [162.26, 79.268]

Output: 120.764


Input: Consider Input: [-96.229, 200.453]

Output: 52.112


Input: Consider Input: [102.524, 88.129, 196.972]


Output: 129.208


