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]: [9, 62, 4, -63, -50, 9, -19, -42, -20]
[A]: [35.5, 33.0, -29.5, -56.5, -20.5, -5.0, -30.5, -31.0]


[Q]: [1, -100, 41, -66, -18, -91, -1, -82, -99, 26, 27, -43, 40]
[A]: [-49.5, -29.5, -12.5, -42.0, -54.5, -46.0, -41.5, -90.5, -36.5, 26.5, -8.0, -1.5]


[Q]: [-46, -32, 9, -73, -2, 0]
[A]:
[-39.0, -11.5, -32.0, -37.5, -1.0]