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: [216.087, 41.07, 213.683, 53.822, 31.214]

Output: 111.175


Input: Consider Input: [-32.03, 84.065, 91.512, 156.512, 78.808, 165.396, 176.764, 116.6]

Output: 104.703


Input: Consider Input: [-26.162, -54.388, 210.418, 243.645, -47.413, 127.634, -7.886]


Output: 63.693