TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [6423, 'w', 'K', 'm', 'S', 'X', '8857', 'r', '9809', 'a', 'g', '7297', 'H', 'Q', 'W', 'I', 'm', '3277', 'm', 'W', 'L', 'H', 'S', 'X', 'y', 2479, 'p', 'B', 7193, 8327, 'X', 8547, 2261, 'X', 477, 535, 'w', 'f', 2923], [5389, 6751, 'F', 'l', 9579, 'A', 'S', 'X', '8857', 'r', '9809', 'a', 'g', '7297', 'H', 'Q', 'W', 'I', 'm', '3277', 'm', 'W', 'L', 'H', 'O', 't', 8821, 'H', 3919, 7667, 'x', 'v', 4035, 3179, 9235, 5679, 'c', 'P']

SOLUTION: S, X, 8857, r, 9809, a, g, 7297, H, Q, W, I, m, 3277, m, W, L, H

PROBLEM: ['R', 't', 'y', '2887', 'x', 4883], [5691, 9457, 'y', '2887', 'u', 'Y']

SOLUTION: y, 2887

PROBLEM: [2033, 225, 'r', 1661, 5931, 't', 4269, 'D', '5777', 'C', 'A', 'f', '8935', 'm', 'Z', '1393', '9285', 'I', 'f', '303', 'O', '9111', 'Z', 'L', '5665', 'P', '2291', 'j', 'o', '7749', '1899', 'N', '3537', 'x', 'g', 'z', 8401, 'E', 21, 'B', 1837, 4357, 4887, 'q', 3535, 'B'], ['m', 'H', 'M', 3757, 4321, 'b', 1533, 9929, 3837, 'D', '5777', 'C', 'A', 'f', '8935', 'm', 'Z', '1393', '9285', 'I', 'f', '303', 'O', '9111', 'Z', 'L', '5665', 'P', '2291', 'j', 'o', '7749', '1899', 'N', '3537', 'x', 'g', 'S', 'P', 'r', 'M']

SOLUTION:
D, 5777, C, A, f, 8935, m, Z, 1393, 9285, I, f, 303, O, 9111, Z, L, 5665, P, 2291, j, o, 7749, 1899, N, 3537, x, g