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: [-42.956, 89.597, -60.477, 101.972, 77.479]

Output: 33.123


Input: Consider Input: [75.879, 43.123]

Output: 59.501


Input: Consider Input: [64.948, -79.346, 177.272, 188.352, -33.385, -73.891]


Output: 40.658