instruction:
In this task you are given a list of integers and you need to find the absolute value of the difference between each two consecutive values. The output should be a list of the absolute value of the differences of each two consecutive values.
question:
[91, 20]
answer:
[71]

question:
[2, -13, 2, 44, 20, -16, 94, 63, -97]
answer:
[15, 15, 42, 24, 36, 110, 31, 160]

question:
[21, -87, -24, -30, -74, 90]
answer:
[108, 63, 6, 44, 164]