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:
[-79, 58]

Ex Output:
[-10.5]


Ex Input:
[83, -58]

Ex Output:
[12.5]


Ex Input:
[87, 71, -92]

Ex Output:

[79.0, -10.5]