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: [86, -66, -60]

A: [10.0, -63.0]
****
Q: [-100, -100, -39, 13, 24, -2, 77, 37, -20, -38, 18, 55]

A: [-100.0, -69.5, -13.0, 18.5, 11.0, 37.5, 57.0, 8.5, -29.0, -10.0, 36.5]
****
Q: [-3, 80, -7, 81, -41, -34, 15, -2, 40, 71, 78, 88]

A:
[38.5, 36.5, 37.0, 20.0, -37.5, -9.5, 6.5, 19.0, 55.5, 74.5, 83.0]
****