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: [-80, 99, -49, -90, 63, 15, 39, -5, -17]

A: [9.5, 25.0, -69.5, -13.5, 39.0, 27.0, 17.0, -11.0]
****
Q: [-64, -46, 21, -97, -86]

A: [-55.0, -12.5, -38.0, -91.5]
****
Q: [-99, 50, 84, -80, -77, 83, 16, 12, -100, -68, 30, -30, -83, -33, 84]

A:
[-24.5, 67.0, 2.0, -78.5, 3.0, 49.5, 14.0, -44.0, -84.0, -19.0, 0.0, -56.5, -58.0, 25.5]
****