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.

Example Input: [91, 20]
Example Output: [71]

Example Input: [-73, -56, -74, -80]
Example Output: [17, 18, 6]

Example Input: [87, 36]
Example Output:
[51]