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]: [-3, -21, 57, -70, -97, -90, 31, 83, 68, -34, -65, 13]
[A]: [-12.0, 18.0, -6.5, -83.5, -93.5, -29.5, 57.0, 75.5, 17.0, -49.5, -26.0]


[Q]: [44, -69, 2, -20, -20]
[A]: [-12.5, -33.5, -9.0, -20.0]


[Q]: [15, -58, 23, -23, -57, -65, -70, -26, 11, 58, -22]
[A]:
[-21.5, -17.5, 0.0, -40.0, -61.0, -67.5, -48.0, -7.5, 34.5, 18.0]