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:
[-47, -92, 82, -29, -21, -46, -47, 55, -27, -9, 39, -94, 81]

Ex Output:
[-69.5, -5.0, 26.5, -25.0, -33.5, -46.5, 4.0, 14.0, -18.0, 15.0, -27.5, -6.5]


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:
[7, -93, 17, -60, 29, -71, 16, -55, -10, -58, 14]

Ex Output:

[-43.0, -38.0, -21.5, -15.5, -21.0, -27.5, -19.5, -32.5, -34.0, -22.0]