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: [120.682, 53.847]

Output: 87.264


Input: Consider Input: [94.752, 94.081, 191.426]

Output: 126.753


Input: Consider Input: [57.641, -39.332, 37.32, 225.518, -90.353, 43.332]


Output: 39.021