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: [214.036, 24.752, 106.748, 206.9, 42.432, 233.646]

Output: 138.086


Input: Consider Input: [-42.207, -46.667, 171.095]

Output: 27.407


Input: Consider Input: [17.996, 37.344, 232.362, 6.077, 137.23, 228.2, 210.116]


Output: 124.189