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]: [-36, 17, -25, -21, 45, 34, -39, 21, 71]
[A]: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


[Q]: [-13, 31, 0, 53]
[A]: [9.0, 15.5, 26.5]


[Q]: [20, 58, 50, -22, 56, -44, -19, 100, -77, -28, 59, 2]
[A]:
[39.0, 54.0, 14.0, 17.0, 6.0, -31.5, 40.5, 11.5, -52.5, 15.5, 30.5]


