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: [-55.198, 36.097, 190.132]

Output: 57.01


Input: Consider Input: [-64.231, 200.235, -9.547, -98.817, 222.577, 12.8, 214.705, 122.883, 216.246, 113.126]

Output: 92.998


Input: Consider Input: [-23.056, 24.547, 162.936, -98.987, 215.764, 244.802, 66.802, -3.494, 125.067]


Output: 79.376