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:
[25, 11, -70, 49, 17, 25, -51, -78, -13, -69, -55, 83, -8]

Ex Output:
[18.0, -29.5, -10.5, 33.0, 21.0, -13.0, -64.5, -45.5, -41.0, -62.0, 14.0, 37.5]


Ex Input:
[29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]

Ex Output:
[-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]


Ex Input:
[-48, 46, -9, 21, -34, 48, 80, 10, -4]

Ex Output:

[-1.0, 18.5, 6.0, -6.5, 7.0, 64.0, 45.0, 3.0]