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: [58.371, 4.131]

Output: 31.251


Input: Consider Input: [82.992, 235.629, -36.094, -43.326, 27.531, -12.091, 212.495, 34.388]

Output: 62.69


Input: Consider Input: [44.134, 246.387, 249.332, 3.801]


Output: 135.914


