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:
[-39, 16, -88, -73, 52, -75, -23, -37, 21]
answer:
[-11.5, -36.0, -80.5, -10.5, -11.5, -49.0, -30.0, -8.0]


question:
[-72, -25, -60, -27, 99, -14, -13, -78, 43, -48, -98]
answer:
[-48.5, -42.5, -43.5, 36.0, 42.5, -13.5, -45.5, -17.5, -2.5, -73.0]


question:
[55, 31, 30, -58, -45, 38, -17, -72, 98, 6, -13, -42]
answer:

[43.0, 30.5, -14.0, -51.5, -3.5, 10.5, -44.5, 13.0, 52.0, -3.5, -27.5]