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:
[83, 68, 64, 59]
answer:
[75.5, 66.0, 61.5]


question:
[29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]
answer:
[-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]


question:
[28, -7, -81, -54, 81, 81, 66, 28, 31, 50, 11, 34]
answer:

[10.5, -44.0, -67.5, 13.5, 81.0, 73.5, 47.0, 29.5, 40.5, 30.5, 22.5]