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]: [-69, 63, 47]
[A]: [-3.0, 55.0]


[Q]: [-79, 66, 43, -67, -68, -15, 18, 22, -100, 77, -4, 30, 22]
[A]: [-6.5, 54.5, -12.0, -67.5, -41.5, 1.5, 20.0, -39.0, -11.5, 36.5, 13.0, 26.0]


[Q]: [-61, 86, -82]
[A]:
[12.5, 2.0]