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:
[27, 32, -92]

Ex Output:
[29.5, -30.0]


Ex Input:
[-67, -96, -7, 11]

Ex Output:
[-81.5, -51.5, 2.0]


Ex Input:
[-76, -3, -6, -74, 70, -26]

Ex Output:

[-39.5, -4.5, -40.0, -2.0, 22.0]