TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [2787, 'N', 'I', 'M', 'x', '3825', 'r', '1041', 'y', 'a', 'v', 6057], ['F', 6523, 'x', '3825', 'r', '1041', 's', 'C', 3001, 8425]

SOLUTION: x, 3825, r, 1041

PROBLEM: ['g', 305, '8447', 'K', 'y', 'D'], [2445, 5519, '8447', 'K', 't', 'l']

SOLUTION: 8447, K

PROBLEM: [1883, 'L', '4189', '19', 'g', 'h', 'V', '1701', 'W', 'H', 'C', 'P', 'X', 'M'], ['n', 5367, 581, 'D', '4189', '19', 'g', 'h', 'V', '1701', 'W', 'f', 'q', 'e', 'r', 'Y', 9301]

SOLUTION:
4189, 19, g, h, V, 1701, W