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:
[92, -17, -95, -37, -56, 82, -96, 89, 35, -22, -58, -7, 80, 86, 55]

Ex Output:
[37.5, -56.0, -66.0, -46.5, 13.0, -7.0, -3.5, 62.0, 6.5, -40.0, -32.5, 36.5, 83.0, 70.5]


Ex Input:
[-59, 49]

Ex Output:
[-5.0]


Ex Input:
[14, 53, -34, -7]

Ex Output:

[33.5, 9.5, -20.5]