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:
[24, -15, -59, 82, -84, 54, -33, 88, -74, 57, -22, 1]

Ex Output:
[4.5, -37.0, 11.5, -1.0, -15.0, 10.5, 27.5, 7.0, -8.5, 17.5, -10.5]


Ex Input:
[-25, 29, 0, -66, -92, 11, -89, -35, 80, -69, 81, -69]

Ex Output:
[2.0, 14.5, -33.0, -79.0, -40.5, -39.0, -62.0, 22.5, 5.5, 6.0, 6.0]


Ex Input:
[57, -58, -33, 26, -85, -18, -90]

Ex Output:

[-0.5, -45.5, -3.5, -29.5, -51.5, -54.0]