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: [28, -83, -37, -51]

A: [-27.5, -60.0, -44.0]
****
Q: [40, 71, -1, -56, -2, 41, 15, -55, -62, 64, 100]

A: [55.5, 35.0, -28.5, -29.0, 19.5, 28.0, -20.0, -58.5, 1.0, 82.0]
****
Q: [30, 4, 63, 76, -71]

A:
[17.0, 33.5, 69.5, 2.5]
****