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]: [77, 66, 11]
[A]: [71.5, 38.5]


[Q]: [-81, 99, -79, 70, 91]
[A]: [9.0, 10.0, -4.5, 80.5]


[Q]: [-11, 77, -38, -67, -28, 43, 62, 97, -50, 51]
[A]:
[33.0, 19.5, -52.5, -47.5, 7.5, 52.5, 79.5, 23.5, 0.5]