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]: [-88, 35, 91, 54, -25]
[A]: [-26.5, 63.0, 72.5, 14.5]


[Q]: [56, 71, 14, 50, -2]
[A]:
[63.5, 42.5, 32.0, 24.0]