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]: [72, -90, -99, -88, -87, -26, -40, -45, 69, 32, 57, 21, -67]
[A]: [-9.0, -94.5, -93.5, -87.5, -56.5, -33.0, -42.5, 12.0, 50.5, 44.5, 39.0, -23.0]


[Q]: [-23, 63, -6, 66, -53, 18, -45]
[A]: [20.0, 28.5, 30.0, 6.5, -17.5, -13.5]


[Q]: [-69, -60, 62, -53, -91, -39, 57, 49, 72, 96]
[A]:
[-64.5, 1.0, 4.5, -72.0, -65.0, 9.0, 53.0, 60.5, 84.0]