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]: [-81, -11, -100, 66, 29, 28, 31, -36]
[A]: [-46.0, -55.5, -17.0, 47.5, 28.5, 29.5, -2.5]


[Q]: [-83, -69, -51, 12, 67, 99, 74, 77, -6, -81, -13, -70, -34, -8, 25]
[A]: [-76.0, -60.0, -19.5, 39.5, 83.0, 86.5, 75.5, 35.5, -43.5, -47.0, -41.5, -52.0, -21.0, 8.5]


[Q]: [13, -91, 38, -1, 7, 86, 43, -42, -58, 9, 100, -7, -53]
[A]:
[-39.0, -26.5, 18.5, 3.0, 46.5, 64.5, 0.5, -50.0, -24.5, 54.5, 46.5, -30.0]