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]: [-77, 14, 56, -86, -9, 71, -2, -1, -74, 37, 39, 53]
[A]: [-31.5, 35.0, -15.0, -47.5, 31.0, 34.5, -1.5, -37.5, -18.5, 38.0, 46.0]


[Q]: [76, -70, 13, 17, 80, 21, 62]
[A]: [3.0, -28.5, 15.0, 48.5, 50.5, 41.5]


[Q]: [-86, -9, -78, -25, 12, 86]
[A]:
[-47.5, -43.5, -51.5, -6.5, 49.0]