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:
[-38, -61, -23, -94, -64, 18, -26, -96, -92, 96, -34, -80, -13, 45, -83]

Ex Output:
[-49.5, -42.0, -58.5, -79.0, -23.0, -4.0, -61.0, -94.0, 2.0, 31.0, -57.0, -46.5, 16.0, -19.0]


Ex Input:
[74, -67, 28, 48, 8, -40, 60, 25, 55, -34, 96, -36]

Ex Output:
[3.5, -19.5, 38.0, 28.0, -16.0, 10.0, 42.5, 40.0, 10.5, 31.0, 30.0]


Ex Input:
[-51, -1, -19, 99, 72, -52, 30, 23]

Ex Output:

[-26.0, -10.0, 40.0, 85.5, 10.0, -11.0, 26.5]