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:
[29, 38, -89, -84, 82, -45, -18, 49, -59, 14, 90, -52, -60, 16, -29]

Ex Output:
[33.5, -25.5, -86.5, -1.0, 18.5, -31.5, 15.5, -5.0, -22.5, 52.0, 19.0, -56.0, -22.0, -6.5]


Ex Input:
[-98, -68, 43, 38, -88, 20, 92, -5]

Ex Output:

[-83.0, -12.5, 40.5, -25.0, -34.0, 56.0, 43.5]