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]: [-74, -74, 64, -88, 59, 99, 27, -18, -49]
[A]: [-74.0, -5.0, -12.0, -14.5, 79.0, 63.0, 4.5, -33.5]


[Q]: [-59, 49]
[A]: [-5.0]


[Q]: [-24, -85, 86, -12, 9, -51]
[A]:
[-54.5, 0.5, 37.0, -1.5, -21.0]