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]: [-10, 80, -47, 88, 17, 70, -21, 5]
[A]: [35.0, 16.5, 20.5, 52.5, 43.5, 24.5, -8.0]


[Q]: [-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]
[A]: [-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]


[Q]: [43, -57]
[A]:
[-7.0]