instruction:
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].
question:
[86, -66, -60]
answer:
[10.0, -63.0]


question:
[-83, -69, -51, 12, 67, 99, 74, 77, -6, -81, -13, -70, -34, -8, 25]
answer:
[-76.0, -60.0, -19.5, 39.5, 83.0, 86.5, 75.5, 35.5, -43.5, -47.0, -41.5, -52.0, -21.0, 8.5]


question:
[-15, -37, -91, -88, -52, -30, 63, 69, -36, 41, 39, -49, 7, -57, -37]
answer:

[-26.0, -64.0, -89.5, -70.0, -41.0, 16.5, 66.0, 16.5, 2.5, 40.0, -5.0, -21.0, -25.0, -47.0]