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: [109.109, -95.395, 5.04, 45.497, 56.443, -72.916]

Output: 7.963


Input: Consider Input: [135.575, 134.352, 209.54, 199.614, 87.027, 215.933, 49.266, 167.288, 164.589]

Output: 151.465


Input: Consider Input: [-27.115, -11.908, 125.703, 202.749, 139.333, 242.982, -93.292, 161.484]


Output: 92.492