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].

[Q]: [58, -5, 43, -83, -62, 51, -90, 29, -13]
[A]: [26.5, 19.0, -20.0, -72.5, -5.5, -19.5, -30.5, 8.0]


[Q]: [-32, 19, 54, -51]
[A]: [-6.5, 36.5, 1.5]


[Q]: [-39, 8, 66, 7, -50, 28, 34]
[A]:
[-15.5, 37.0, 36.5, -21.5, -11.0, 31.0]