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:
[42, 58]
answer:
[16]


question:
[-1, -11, -55, -19, -20, -19, -90, -66, -86]
answer:
[10, 44, 36, 1, 1, 71, 24, 20]


question:
[-99, 99, 68, -90]
answer:

[198, 31, 158]