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]: [78, 3, 3, 50, 80, -76, -73, -20, -71, -29, -47, 4]
[A]: [40.5, 3.0, 26.5, 65.0, 2.0, -74.5, -46.5, -45.5, -50.0, -38.0, -21.5]


[Q]: [1, -100, 41, -66, -18, -91, -1, -82, -99, 26, 27, -43, 40]
[A]: [-49.5, -29.5, -12.5, -42.0, -54.5, -46.0, -41.5, -90.5, -36.5, 26.5, -8.0, -1.5]


[Q]: [-48, 72, 90, -31, -70]
[A]:
[12.0, 81.0, 29.5, -50.5]