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]: [20, 57, 16, -66, -30, -89, 64, -22, 7, -36, -19, -71]
[A]: [38.5, 36.5, -25.0, -48.0, -59.5, -12.5, 21.0, -7.5, -14.5, -27.5, -45.0]


[Q]: [-68, 93, -7, 31, -45, -70, -28, 78]
[A]: [12.5, 43.0, 12.0, -7.0, -57.5, -49.0, 25.0]


[Q]: [29, -12, 91, -98, -32, -89, 2, 83, 18, 50, 53]
[A]:
[8.5, 39.5, -3.5, -65.0, -60.5, -43.5, 42.5, 50.5, 34.0, 51.5]