TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['h', 'L', 2481, 8463, 1309, '7587', '521', 'a', '1617', '5245', '5629', '9977', 'o', 'I', 4133, 't', 'i'], ['P', 5497, '7587', '521', 'a', '1617', '5245', '5629', '9977', 'I', 2251, 'p', 's', 'n', 'k', 8259]

SOLUTION: 7587, 521, a, 1617, 5245, 5629, 9977

PROBLEM: [4817, 'A', '3155', 'W', 'm', 4061], [7701, 'P', '3155', 'W', 't', 'J']

SOLUTION: 3155, W

PROBLEM: [7909, 'Z', 'y', 'K', 'W', 'h', '135', 'A', '1431', 'F', 'v', 'b', 'i', 'g'], [6963, 'm', 4847, 'R', 8383, 'X', 7175, 'y', 'K', 'W', 'h', '135', 'A', '1431', 'F', 'v', 'b', 'd', 'q']

SOLUTION:
y, K, W, h, 135, A, 1431, F, v, b