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, 66, 43, -67, -68, -15, 18, 22, -100, 77, -4, 30, 22]

Ex Output:
[-6.5, 54.5, -12.0, -67.5, -41.5, 1.5, 20.0, -39.0, -11.5, 36.5, 13.0, 26.0]


Ex Input:
[-24, -77, -80, -97, 30, -25, -95, 97, -92]

Ex Output:
[-50.5, -78.5, -88.5, -33.5, 2.5, -60.0, 1.0, 2.5]


Ex Input:
[73, -75, -31, 15, 46, 10, -5, 35, -2]

Ex Output:

[-1.0, -53.0, -8.0, 30.5, 28.0, 2.5, 15.0, 16.5]