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: [245.091, 201.984, 204.428, 222.046, 4.807, 21.497, -34.025, 160.097]

Output: 128.241


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


Output: 4.437