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]: [42, 55, -1, 83, 35, 85, 50, 90, -12, -65, 43, 94, 39, -39, -78]
[A]: [48.5, 27.0, 41.0, 59.0, 60.0, 67.5, 70.0, 39.0, -38.5, -11.0, 68.5, 66.5, 0.0, -58.5]


[Q]: [-80, -100, -83, -56, -16, 87]
[A]: [-90.0, -91.5, -69.5, -36.0, 35.5]


[Q]: [-3, 55, 89, 22, 84, 40, -16, -1, 88]
[A]:
[26.0, 72.0, 55.5, 53.0, 62.0, 12.0, -8.5, 43.5]