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: [72.326, -74.6, 127.566, -54.848, 198.529, -44.061, -28.155]

Output: 28.108


Input: Consider Input: [127.522, 232.86, 46.593]

Output: 135.658


Input: Consider Input: [118.708, 93.351, 98.357, 89.619, 94.808, 26.052, 217.183, 50.426]


Output: 98.563