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: [122.737, 189.477, -4.853, 150.031, 126.296, 240.809, 204.743, 29.178]

Output: 132.302


Input: Consider Input: [123.511, 37.811, 249.595, -25.324]

Output: 96.398


Input: Consider Input: [170.111, 157.513]


Output: 163.812