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: [-82.094, 163.171, -35.384, 69.572]

Output: 28.816


Input: Consider Input: [110.444, 23.089, -6.235, 112.579, 31.292, 190.857, 58.854, 148.587, 163.706, -5.219]

Output: 82.795


Input: Consider Input: [181.007, -78.145, 199.126, 184.873, -33.397]


Output: 90.693