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: [43.554, 122.733, 40.669, 163.641]

Output: 92.649


Input: Consider Input: [151.151, 144.049, 217.252]

Output: 170.817


Input: Consider Input: [204.235, -53.675, 201.303, 20.869]


Output: 93.183


