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: [109.74, 169.0, 195.864, -1.043, 51.968, -56.564, 214.711, -78.61, 212.459, 228.74]

Output: 104.626


Input: Consider Input: [127.703, -82.203, 53.438]

Output: 32.979


Input: Consider Input: [21.723, 130.05, 75.095]


Output: 75.623