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]: [-69, 38, 10]
[A]: [-15.5, 24.0]


[Q]: [4, 56, 13, 30, 42, -23, 54, 75, -46, -34, 44, -47, 50, -16]
[A]: [30.0, 34.5, 21.5, 36.0, 9.5, 15.5, 64.5, 14.5, -40.0, 5.0, -1.5, 1.5, 17.0]


[Q]: [-49, -91, -7]
[A]:
[-70.0, -49.0]