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: [-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]

Output: 4.437


Input: Consider Input: [-78.906, 119.863, 44.561, 1.523]

Output: 21.76


Input: Consider Input: [-48.061, 26.658, -86.358, 1.313, 210.341, 116.85, 156.805, 186.555, 14.375]


Output: 64.275