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:
[-74, -2]

Ex Output:
[-38.0]


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:
[76, 41, 52, 57, 6, -73, -21, -36, -85, 75, -35, 93]

Ex Output:

[58.5, 46.5, 54.5, 31.5, -33.5, -47.0, -28.5, -60.5, -5.0, 20.0, 29.0]