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]: [91, 12, -2, 74, -96, 64, 58, -44, -31, 38, 1, -26, -88, -67, 80]
[A]: [51.5, 5.0, 36.0, -11.0, -16.0, 61.0, 7.0, -37.5, 3.5, 19.5, -12.5, -57.0, -77.5, 6.5]


[Q]: [16, 96, -27, -13, -86, -98, -68, 27, 66, 95, -26, -34, -94]
[A]: [56.0, 34.5, -20.0, -49.5, -92.0, -83.0, -20.5, 46.5, 80.5, 34.5, -30.0, -64.0]


[Q]: [-6, -2]
[A]:
[-4.0]