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]: [58, -99]
[A]: [-20.5]


[Q]: [-89, 64, -14, -48, -57, -86, 14]
[A]: [-12.5, 25.0, -31.0, -52.5, -71.5, -36.0]


[Q]: [23, -27, -83, -29, -69, 82]
[A]:
[-2.0, -55.0, -56.0, -49.0, 6.5]