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:
[79, 93, 22, -12, 60, -51, 71, -59, -27, -43, -31, 60, -55]
answer:
[86.0, 57.5, 5.0, 24.0, 4.5, 10.0, 6.0, -43.0, -35.0, -37.0, 14.5, 2.5]


question:
[-80, -84]
answer:
[-82.0]


question:
[-86, 47, 29, 32, -44, 89, -100, 86, -7]
answer:

[-19.5, 38.0, 30.5, -6.0, 22.5, -5.5, -7.0, 39.5]