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]: [-15, 5]
[A]: [-5.0]


[Q]: [-2, 12, 55, -100, 82, 53, 13, 62, -93, -8, -25, -15, 92]
[A]: [5.0, 33.5, -22.5, -9.0, 67.5, 33.0, 37.5, -15.5, -50.5, -16.5, -20.0, 38.5]


[Q]: [59, 4, -55, 72, 21, -36, 50, -62, -80]
[A]:
[31.5, -25.5, 8.5, 46.5, -7.5, 7.0, -6.0, -71.0]