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: [80.113, -28.006, -40.254, 222.454, 29.784, 129.871, 141.71, -44.716, -22.74]

Output: 52.024


Input: Consider Input: [172.084, 126.948, 90.757]

Output: 129.93


Input: Consider Input: [83.613, 237.517, 102.416, 110.511, 98.16]


Output: 126.443