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: [199.153, 182.13, -7.832, -60.259]

Output: 78.298


Input: Consider Input: [66.666, -70.196, -39.152]

Output: -14.227


Input: Consider Input: [235.155, 2.197, -31.301, 145.214, 119.032, 185.955]


Output: 109.375