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: [157.14, 120.799, -55.651, -50.479, 89.067, 192.279, 57.227, 137.972]

Output: 81.044


Input: Consider Input: [176.423, 236.2, 216.6, 222.181, 133.478, 5.495, -41.237, 27.421]


Output: 122.07