The goal is to test if a consecutive sequence can be formed. A consecutive sequence is defined as a sequence of incrementing numbers (e.g. 1, 2, 3 or 5, 6, 7, 8). The twist is that you have to consider the combination of lists as shown. You can combine any two elements from different lists.
[-5 1 3 5 ] => [3 5 1 -5 ] => [3+4 5+3 1+8 15-5] = [7 8 9 10] => True
[4 3 8 15] => [4 3 8 15]
Also important is that the lists can be of different sizes, allowing for partially unpaired numbers in some cases.
[2 2 2 ] => [2 2 2 0] => [2+5 2+6 2+7 10+0] = [7 8 9 10] => True
[10 5 6 7] => [5 7 6 10]