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]: [-51, -25, -51, 46, -78, 9, -14, -14, -25, 79, 56, -5]
[A]: [-38.0, -38.0, -2.5, -16.0, -34.5, -2.5, -14.0, -19.5, 27.0, 67.5, 25.5]


[Q]: [-18, 63, 49, 17, 1]
[A]: [22.5, 56.0, 33.0, 9.0]


[Q]: [71, 15, -17]
[A]:
[43.0, -1.0]