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:
[-77, -52, 64, 34, -9, 29, -91, 90, 8, -87, 34, 1, -8]

Ex Output:
[-64.5, 6.0, 49.0, 12.5, 10.0, -31.0, -0.5, 49.0, -39.5, -26.5, 17.5, -3.5]


Ex Input:
[-3, -21, 57, -70, -97, -90, 31, 83, 68, -34, -65, 13]

Ex Output:
[-12.0, 18.0, -6.5, -83.5, -93.5, -29.5, 57.0, 75.5, 17.0, -49.5, -26.0]


Ex Input:
[14, 49, -88, 85, 79, 93, -16, 66, -35, 14, 40, 38, -9]

Ex Output:

[31.5, -19.5, -1.5, 82.0, 86.0, 38.5, 25.0, 15.5, -10.5, 27.0, 39.0, 14.5]