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]: [-100, -17, -69, 0, 35, -39, -34, -70, 21, 55, -74, -63]
[A]: [-58.5, -43.0, -34.5, 17.5, -2.0, -36.5, -52.0, -24.5, 38.0, -9.5, -68.5]


[Q]: [-63, 22, 66, -25, 21, -32, -57, -66, 50, -82, 29]
[A]: [-20.5, 44.0, 20.5, -2.0, -5.5, -44.5, -61.5, -8.0, -16.0, -26.5]


[Q]: [-56, -57, -82, 72]
[A]:
[-56.5, -69.5, -5.0]