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]: [-42, -76]
[A]: [-59.0]


[Q]: [74, -26, 94, -68]
[A]: [24.0, 34.0, 13.0]


[Q]: [13, 27]
[A]:
[20.0]