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]: [-46, -62, 32, 90, -50, -12, 70, -55, 38, -53]
[A]: [-54.0, -15.0, 61.0, 20.0, -31.0, 29.0, 7.5, -8.5, -7.5]


[Q]: [-34, 7, -83, 25, -31, 7]
[A]: [-13.5, -38.0, -29.0, -3.0, -12.0]


[Q]: [58, -15]
[A]:
[21.5]