TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [5639, 'n', 'J', '9525', 'B', 'o', 's', 'P'], ['t', 893, 4667, '9525', 'B', 'o', 7501, 'z', 6255]

SOLUTION: 9525, B, o

PROBLEM: ['Y', 'z', 5335, 'X', 3843, 'D', 4457, 2327, 'V', 7231, 'y', 4551, 'W', 9241, '7147', '6713', '9717', '8795', '3161', 'V', '1129', '2943', '9809', 'a', '3273', 'y', 'R', 'M', 'g', 'E', 'D', 'd', 'x', 5331, 7187, 'J', 3839, 't'], [1485, 'f', 8207, 5859, 'D', 'k', 't', 'r', 'z', 613, 9091, 4893, 5755, '7147', '6713', '9717', '8795', '3161', 'V', '1129', '2943', '9809', 'a', '3273', 'y', 'R', 'M', 'Q', 5331, 'c', 3531, 6477, 'a']

SOLUTION: 7147, 6713, 9717, 8795, 3161, V, 1129, 2943, 9809, a, 3273, y, R, M

PROBLEM: ['c', 'S', '1561', 'a', '9045', 'R', 'g'], ['Y', 'Y', '1561', 'a', '9045', 'y', 7919]

SOLUTION:
1561, a, 9045