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: [149.806, 232.621, 119.06]

Output: 167.162


Input: Consider Input: [223.951, 2.518, 140.336, -38.799, 217.497, 212.153, 21.874]

Output: 111.361


Input: Consider Input: [197.04, 245.68, 48.92, -96.501, -47.164, 114.349]


Output: 77.054