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: [-32.499, 21.999, 235.435, 58.638, -57.806, 224.947, 74.782]

Output: 75.071


Input: Consider Input: [-30.66, 134.777, 39.637, -41.053, 60.502, -99.875, -32.055, 51.52, 216.645, 11.994]

Output: 31.143


Input: Consider Input: [-43.315, 171.94, 167.346, -98.347, 71.547, -53.132, 175.534, 61.487, 155.516, -59.787]


Output: 54.879