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: [-75.664, 192.225, 2.107, -86.22, -51.11]

Output: -3.732


Input: Consider Input: [127.522, 232.86, 46.593]

Output: 135.658


Input: Consider Input: [224.259, 144.025]


Output: 184.142