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: [22, -56]

A: [-17.0]
****
Q: [-45, 34]

A: [-5.5]
****
Q: [18, 23, 71, -16, -42, 42, -30, -34, -5]

A:
[20.5, 47.0, 27.5, -29.0, 0.0, 6.0, -32.0, -19.5]
****