TASK DEFINITION: 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.
PROBLEM: [-31, -51, -13, 29, -28, 21, 78, -37, -20, -49, -68, 10]

SOLUTION: [20, 38, 42, 57, 49, 57, 115, 17, 29, 19, 78]

PROBLEM: [21, -87, -24, -30, -74, 90]

SOLUTION: [108, 63, 6, 44, 164]

PROBLEM: [34, 12, -22]

SOLUTION:
[22, 34]