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:
[86, -66, -60]
answer:
[10.0, -63.0]


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:
[58, 47, 41, 73, -34, 48, -15, -62, -28, -45, 43, -26, 55, -19, 6]
answer:

[52.5, 44.0, 57.0, 19.5, 7.0, 16.5, -38.5, -45.0, -36.5, -1.0, 8.5, 14.5, 18.0, -6.5]