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:
[-31, 21, -23]
answer:
[-5.0, -1.0]


question:
[20, -17, 41, -60, 2, 64, 36, 16, -43]
answer:
[1.5, 12.0, -9.5, -29.0, 33.0, 50.0, 26.0, -13.5]


question:
[19, 43]
answer:

[31.0]