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


[Q]: [-16, 54, 42]
[A]: [19.0, 48.0]


[Q]: [96, -65, 86, 0, 1, -69]
[A]:
[15.5, 10.5, 43.0, 0.5, -34.0]