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:
[53, -72, 28, 71, -20, 47, 3, 68]

Ex Output:
[-9.5, -22.0, 49.5, 25.5, 13.5, 25.0, 35.5]


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:
[-99, 93, 57, -40, -9, -47, 2, 51]

Ex Output:

[-3.0, 75.0, 8.5, -24.5, -28.0, -22.5, 26.5]