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:
[-16, -71, 65, -8, 15, 10, -100, -67]

Ex Output:
[-43.5, -3.0, 28.5, 3.5, 12.5, -45.0, -83.5]


Ex Input:
[-18, 63, 49, 17, 1]

Ex Output:
[22.5, 56.0, 33.0, 9.0]


Ex Input:
[-28, -91, 80, -34, 47, -26]

Ex Output:

[-59.5, -5.5, 23.0, 6.5, 10.5]


