In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].

Ex Input:
[-99, 61, 95]

Ex Output:
[-19.0, 78.0]


Ex Input:
[74, -26, 94, -68]

Ex Output:
[24.0, 34.0, 13.0]


Ex Input:
[-83, 27, 2, 57, -11, -40, 35, 69, 58]

Ex Output:

[-28.0, 14.5, 29.5, 23.0, -25.5, -2.5, 52.0, 63.5]