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]: [-47, 99, -39, 1, 32, 77, 4, 53, -71]
[A]: [26.0, 30.0, -19.0, 16.5, 54.5, 40.5, 28.5, -9.0]


[Q]: [18, -97, -66, -82, -74, 44, 15, 1, 79, -3]
[A]: [-39.5, -81.5, -74.0, -78.0, -15.0, 29.5, 8.0, 40.0, 38.0]


[Q]: [-4, -73, -23, -72, 26, 1, -87, -20]
[A]:
[-38.5, -48.0, -47.5, -23.0, 13.5, -43.0, -53.5]