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:
[58, -99]
answer:
[-20.5]


question:
[20, -40, -63, 94, -53, -6, 18, 47, -18, -20, -94, 71, 17, 26]
answer:
[-10.0, -51.5, 15.5, 20.5, -29.5, 6.0, 32.5, 14.5, -19.0, -57.0, -11.5, 44.0, 21.5]


question:
[62, 80, -89]
answer:

[71.0, -4.5]