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]: [-36, 17, -25, -21, 45, 34, -39, 21, 71]
[A]: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


[Q]: [91, 3, -59, 63]
[A]: [47.0, -28.0, 2.0]


[Q]: [28, -83, -37, -51]
[A]:
[-27.5, -60.0, -44.0]