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.

Ex Input:
[54, 26, 61, 48, 23, 23, -30, -72, 14]

Ex Output:
[28, 35, 13, 25, 0, 53, 42, 86]


Ex Input:
[64, 10]

Ex Output:
[54]


Ex Input:
[-49, -12]

Ex Output:

[37]