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:
[53, -72, 28, 71, -20, 47, 3, 68]

Ex Output:
[-9.5, -22.0, 49.5, 25.5, 13.5, 25.0, 35.5]


Ex Input:
[6, 36, -26, 83, 55, 84, -63, -78, 84, -35, 14, 9, 59, -14]

Ex Output:
[21.0, 5.0, 28.5, 69.0, 69.5, 10.5, -70.5, 3.0, 24.5, -10.5, 11.5, 34.0, 22.5]


Ex Input:
[73, -91, -55, 1, -38, -51, -19, 61, -58, -58, 72, -48, -18]

Ex Output:

[-9.0, -73.0, -27.0, -18.5, -44.5, -35.0, 21.0, 1.5, -58.0, 7.0, 12.0, -33.0]