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: [223.847, 115.483, 148.407, -44.824, 99.251, 36.833, -45.949]

Output: 76.15


Input: Consider Input: [194.964, 80.506, -41.268, 32.912, -21.6, 21.543, 69.269]

Output: 48.047


Input: Consider Input: [35.898, 5.888, -70.803, 39.487, -64.013, -5.472, 173.391, 229.669, 71.343, 153.543]


Output: 56.893