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]: [-36, 17, -25, -21, 45, 34, -39, 21, 71]
[A]: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


[Q]: [33, 66, 9, -63, -67, 30, -47, -2, -26, -91]
[A]: [49.5, 37.5, -27.0, -65.0, -18.5, -8.5, -24.5, -14.0, -58.5]


[Q]: [-88, -31]
[A]:
[-59.5]