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:
[58, -99]

Ex Output:
[-20.5]


Ex Input:
[-89, -9, -14, -28, 41, 44, 86, 40, 75, 30, -1, 86]

Ex Output:
[-49.0, -11.5, -21.0, 6.5, 42.5, 65.0, 63.0, 57.5, 52.5, 14.5, 42.5]


Ex Input:
[14, 27, 75, -9, 69, 40, 63, -49, -95, -54, 84, -88]

Ex Output:

[20.5, 51.0, 33.0, 30.0, 54.5, 51.5, 7.0, -72.0, -74.5, 15.0, -2.0]