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]: [24, 99, 39, -86]
[A]: [61.5, 69.0, -23.5]


[Q]: [57, -26, -99, 61, 13, 31]
[A]: [15.5, -62.5, -19.0, 37.0, 22.0]


[Q]: [55, -78, 36, -86, -28, -61, -83, 36, -80, 76, 65, -97, -94, -67, 37]
[A]:
[-11.5, -21.0, -25.0, -57.0, -44.5, -72.0, -23.5, -22.0, -2.0, 70.5, -16.0, -95.5, -80.5, -15.0]