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:
[-16, 64, -90, -98, -31, 44, 49, -51]

Ex Output:
[24.0, -13.0, -94.0, -64.5, 6.5, 46.5, -1.0]


Ex Input:
[-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]

Ex Output:
[-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]


Ex Input:
[17, 36, 88, 73, 12, 73, 95, -79, 51, 1, -40]

Ex Output:

[26.5, 62.0, 80.5, 42.5, 42.5, 84.0, 8.0, -14.0, 26.0, -19.5]