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:
[-2, 54, 35, -67]

Ex Output:
[26.0, 44.5, -16.0]


Ex Input:
[-83, -21, -49, -92, 75]

Ex Output:
[-52.0, -35.0, -70.5, -8.5]


Ex Input:
[37, -85, 80, -21, -26, 95, -5, 39, 99, -79, 57, -100, -100, 97, -5]

Ex Output:

[-24.0, -2.5, 29.5, -23.5, 34.5, 45.0, 17.0, 69.0, 10.0, -11.0, -21.5, -100.0, -1.5, 46.0]