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]: [-56, 32, -54]
[A]: [-12.0, -11.0]


[Q]: [40, -65, -77]
[A]: [-12.5, -71.0]


[Q]: [-76, 70, -94, 46, -34]
[A]:
[-3.0, -12.0, -24.0, 6.0]