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]: [83, -87, 28, 17, 96, 39, -82]
[A]: [-2.0, -29.5, 22.5, 56.5, 67.5, -21.5]


[Q]: [-3, -21, 57, -70, -97, -90, 31, 83, 68, -34, -65, 13]
[A]: [-12.0, 18.0, -6.5, -83.5, -93.5, -29.5, 57.0, 75.5, 17.0, -49.5, -26.0]


[Q]: [58, -2, -71, -17, 24, -8, 76, 19, -82, 99, -98, 33, 56]
[A]:
[28.0, -36.5, -44.0, 3.5, 8.0, 34.0, 47.5, -31.5, 8.5, 0.5, -32.5, 44.5]