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:
[85, 64]

Ex Output:
[74.5]


Ex Input:
[-15, -37, -91, -88, -52, -30, 63, 69, -36, 41, 39, -49, 7, -57, -37]

Ex Output:
[-26.0, -64.0, -89.5, -70.0, -41.0, 16.5, 66.0, 16.5, 2.5, 40.0, -5.0, -21.0, -25.0, -47.0]


Ex Input:
[82, 19, 0, 50, 39, 86, -18, -78]

Ex Output:

[50.5, 9.5, 25.0, 44.5, 62.5, 34.0, -48.0]