In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

['R', 'k', 'g', 4045, 'W', '4923', '9161', '4031', '7443', 'f', 'U', 2683, 'Y'], [943, 'v', '4923', '9161', '4031', '7443', 'f', 't', 'm', 9213]
4923, 9161, 4031, 7443, f

[9049, 'c', 'B', 'H', '8393', '3255', 'C', '6239', 'G', '1819', '6771', '1217', '2853', '7341', 'C', 'S', '2155', 'N', '2837', 'N', 'v', '9271', 'Q', 'g', '8921', '7371', 'G', 'N', 'z', 8197, 'p', 8453, 2429, 1051, 'Y', 4315, 5473, 't', 4905, 'J', 'l', 5959, 't', 'x', 'F', 8431], [9507, 2299, 6223, 3229, 4513, 3943, 'R', 2817, '8393', '3255', 'C', '6239', 'G', '1819', '6771', '1217', '2853', '7341', 'C', 'S', '2155', 'N', '2837', 'N', 'v', '9271', 'Q', 'g', '8921', '7371', 'G', 'T', 3597]
8393, 3255, C, 6239, G, 1819, 6771, 1217, 2853, 7341, C, S, 2155, N, 2837, N, v, 9271, Q, g, 8921, 7371, G

[2311, 2887, '7787', '2263', 'A', 5313], ['Y', 'K', '7787', '2263', 'l', 2793]

7787, 2263