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]: [67, 45, 59, -50, -28, -70, -84, 69, 72, 53]
[A]: [56.0, 52.0, 4.5, -39.0, -49.0, -77.0, -7.5, 70.5, 62.5]


[Q]: [-13, 58, 24, 49, 97]
[A]: [22.5, 41.0, 36.5, 73.0]


[Q]: [81, 71, -3]
[A]:
[76.0, 34.0]