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]: [38, -15, -76]
[A]: [11.5, -45.5]


[Q]: [20, -17, 41, -60, 2, 64, 36, 16, -43]
[A]: [1.5, 12.0, -9.5, -29.0, 33.0, 50.0, 26.0, -13.5]


[Q]: [-68, -5, -67, -72, -13, 80, 56, -45, -75, -74, 38]
[A]:
[-36.5, -36.0, -69.5, -42.5, 33.5, 68.0, 5.5, -60.0, -74.5, -18.0]