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: [156.41, 19.521, 110.08, -59.009, 49.787, 243.748, -25.285, -71.104, 131.859, -70.207]

Output: 48.58


Input: Consider Input: [20.796, 39.383, -26.46, -27.224, 89.591, 87.502, 211.781, 127.87, 223.38]

Output: 82.958


Input: Consider Input: [3.03, 107.892, 181.606, -95.674, -84.295, 40.666, 59.011, -27.334, 82.859, -86.426]


Output: 18.133