TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['e', 439, '9737', '9901', 'J', '4323', 'J', '3137', 'G', 'j', 4931, 7411, 'B', 'H', 'j', 7789], ['F', 'J', '9737', '9901', 'J', '4323', 'J', '3137', 'G', 'R', 'i', 'c', 'k', 'h', 'u']

SOLUTION: 9737, 9901, J, 4323, J, 3137, G

PROBLEM: ['o', 'f', '955', 'y', 'O', 2181], ['M', 'l', '955', 'y', 'h', 5209]

SOLUTION: 955, y

PROBLEM: [5781, 'g', 'b', 8851, 3917, 'v', 'N', 'j', '2085', '2067', 'R', '2971', '2331', '595', 'd', 'K', 'O'], [2391, 7575, 2217, 9731, 'v', 'N', 'j', '2085', '2067', 'R', '2971', '2331', '595', 'V', 'J', 3411, 949, 'c', 'I', 'a', 'L']

SOLUTION:
v, N, j, 2085, 2067, R, 2971, 2331, 595