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]: [-89, -9, -14, -28, 41, 44, 86, 40, 75, 30, -1, 86]
[A]: [-49.0, -11.5, -21.0, 6.5, 42.5, 65.0, 63.0, 57.5, 52.5, 14.5, 42.5]


[Q]: [-72, 43, 78, -30, 53]
[A]: [-14.5, 60.5, 24.0, 11.5]


[Q]: [72, 53, 36, 15, -49, -88]
[A]:
[62.5, 44.5, 25.5, -17.0, -68.5]