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: [102.553, 221.594, -69.406, 192.534, 139.703, -38.208, 228.963, 32.921]

Output: 101.332


Input: Consider Input: [-17.141, 203.132, -6.872, 155.222, -99.642]

Output: 46.94


Input: Consider Input: [113.95, 191.136, 21.78, -84.56, 116.657, 28.424, 203.7, 153.447, 145.773]


Output: 98.923