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: [-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]
****
Q: [-34, -43, 12]

A: [-38.5, -15.5]
****
Q: [67, -59, -66]

A:
[4.0, -62.5]
****