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]: [-34, 86, -55, 55, 97, 30, 27, -60, -25, 54, -4]
[A]: [26.0, 15.5, 0.0, 76.0, 63.5, 28.5, -16.5, -42.5, 14.5, 25.0]


[Q]: [27, -75, 71, -18, -67, -62, 95, 3, 10]
[A]: [-24.0, -2.0, 26.5, -42.5, -64.5, 16.5, 49.0, 6.5]


[Q]: [42, -60]
[A]:
[-9.0]