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:
[80, -2, 99, 78]
answer:
[82, 101, 21]


question:
[-90, 90]
answer:
[180]


question:
[28, 7, 37, 22, 4, -20, -17, -15, 63, 73, 18, -21]
answer:

[21, 30, 15, 18, 24, 3, 2, 78, 10, 55, 39]