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]: [-8, 35, 28, -100]
[A]: [13.5, 31.5, -36.0]


[Q]: [-100, -100, -39, 13, 24, -2, 77, 37, -20, -38, 18, 55]
[A]: [-100.0, -69.5, -13.0, 18.5, 11.0, 37.5, 57.0, 8.5, -29.0, -10.0, 36.5]


[Q]: [60, 57]
[A]:
[58.5]