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:
[52, 88, 91, 51, 48, 72, 93, 44, -23]

Ex Output:
[70.0, 89.5, 71.0, 49.5, 60.0, 82.5, 68.5, 10.5]


Ex Input:
[93, -20, -64, -4, -73, 78, -84, 84, -87]

Ex Output:
[36.5, -42.0, -34.0, -38.5, 2.5, -3.0, 0.0, -1.5]


Ex Input:
[74, -85, -24]

Ex Output:

[-5.5, -54.5]