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]: [-31, 47, -12, 69, 3, 15, 55, 87, 81, 75, -77, -59, -28]
[A]: [8.0, 17.5, 28.5, 36.0, 9.0, 35.0, 71.0, 84.0, 78.0, -1.0, -68.0, -43.5]


[Q]: [-1, 75, -1, -37, -38, -10, 70, -75, -98, 39, 37, -15, 60]
[A]: [37.0, 37.0, -19.0, -37.5, -24.0, 30.0, -2.5, -86.5, -29.5, 38.0, 11.0, 22.5]


[Q]: [46, 72, 70, 63, 47]
[A]:
[59.0, 71.0, 66.5, 55.0]