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:
[10, 69, 6, -80, -39, 74]

Ex Output:
[39.5, 37.5, -37.0, -59.5, 17.5]


Ex Input:
[96, -100, -60, -70, 33, -23, 42, 80, 33, -32, -52, -14, -62, 11]

Ex Output:
[-2.0, -80.0, -65.0, -18.5, 5.0, 9.5, 61.0, 56.5, 0.5, -42.0, -33.0, -38.0, -25.5]


Ex Input:
[-29, 33, 90, 42, 24, 100, 21, 92, -50]

Ex Output:

[2.0, 61.5, 66.0, 33.0, 62.0, 60.5, 56.5, 21.0]