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:
[-91, 59, -52, 34, 5, 83, 49, -1, 27]

Ex Output:
[-16.0, 3.5, -9.0, 19.5, 44.0, 66.0, 24.0, 13.0]


Ex Input:
[94, 49, -16, 80, 1, -93]

Ex Output:
[71.5, 16.5, 32.0, 40.5, -46.0]


Ex Input:
[39, 40, 43, 34, 1, 41, 64, -79, 69, -78, -5]

Ex Output:

[39.5, 41.5, 38.5, 17.5, 21.0, 52.5, -7.5, -5.0, -4.5, -41.5]