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: [45.112, 147.024, -15.583, 33.655, -60.031]

Output: 30.035


Input: Consider Input: [148.261, -51.308, -98.748, -41.832, 44.313, -41.042, -19.943]

Output: -8.614


Input: Consider Input: [-34.191, -54.725]


Output: -44.458