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]: [-55, -71, -30, -22]
[A]: [-63.0, -50.5, -26.0]


[Q]: [-10, 80, -47, 88, 17, 70, -21, 5]
[A]: [35.0, 16.5, 20.5, 52.5, 43.5, 24.5, -8.0]


[Q]: [-31, -21, 0, -72, -11, 34, -53, 86, -39, 77, 99, 22, -25]
[A]:
[-26.0, -10.5, -36.0, -41.5, 11.5, -9.5, 16.5, 23.5, 19.0, 88.0, 60.5, -1.5]