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: [-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]

Output: 4.437


Input: Consider Input: [213.149, 184.894, -93.544, 195.043, 78.738, 229.09, 220.609, 80.079, 7.498]

Output: 123.951


Input: Consider Input: [201.059, -91.982, 34.307, 22.568, 181.399, -13.055, 220.963, 114.027, 128.754]


Output: 88.671