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: [113.238, 247.072, -31.448, -33.563, 74.519, 67.841]

Output: 72.943


Input: Consider Input: [207.165, 246.399, 44.821, -21.671]

Output: 119.178


Input: Consider Input: [169.817, 225.686, 65.241, -4.629, 198.818, 149.266]


Output: 134.033