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: [61.761, 6.557, -93.386, -74.064, 33.4, 141.295]

Output: 12.594


Input: Consider Input: [131.164, 99.999, 138.488, 57.264, -40.069, -82.402, -42.836]

Output: 37.373


Input: Consider Input: [199.728, -96.25, -77.714]


Output: 8.588