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:
[-27, -64]
answer:
[-45.5]


question:
[-63, 4, 4, 49, -83, 99, 85, -18, 11, 83, 73]
answer:
[-29.5, 4.0, 26.5, -17.0, 8.0, 92.0, 33.5, -3.5, 47.0, 78.0]


question:
[72, -48, -16, 81, 83, -10, -59, -98, -68]
answer:

[12.0, -32.0, 32.5, 82.0, 36.5, -34.5, -78.5, -83.0]