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: [18, 21, 77, 69, 55, 2, 31, -48, -6, 49, 21, -79]

SOLUTION: [3, 56, 8, 14, 53, 29, 79, 42, 55, 28, 100]

PROBLEM: [33, -69, 37, -65, 83, 61, 53, 92, 84, -57, 100]

SOLUTION: [102, 106, 102, 148, 22, 8, 39, 8, 141, 157]

PROBLEM: [67, 81]

SOLUTION:
[14]