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:
[-53, 31, 52]

Ex Output:
[-11.0, 41.5]


Ex Input:
[61, -99, -96]

Ex Output:
[-19.0, -97.5]


Ex Input:
[-69, 38, 10]

Ex Output:

[-15.5, 24.0]