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]: [-81, -97, 24, 13, -42, -46, -6, 31]
[A]: [-89.0, -36.5, 18.5, -14.5, -44.0, -26.0, 12.5]


[Q]: [-5, 81, 50, -12, 34, 99, -50, -91, -12, 2, 97, 2, -16, 79]
[A]: [38.0, 65.5, 19.0, 11.0, 66.5, 24.5, -70.5, -51.5, -5.0, 49.5, 49.5, -7.0, 31.5]


[Q]: [-74, -8, -69]
[A]:
[-41.0, -38.5]