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: [88.77, 109.102, -86.446, 207.301, 160.91, -12.956]

Output: 77.78


Input: Consider Input: [96.706, 239.918, 73.299, 68.184, 233.512, -76.407]

Output: 105.869


Input: Consider Input: [41.058, 165.719]


Output: 103.388