In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['T', 6257, 'u', 8471, '3213', 'F', '7919', '1153', 'k', '6239', 'G', 'K', 'U', 's', 'G', '5269', '5187', 'C', '4139', '4617', 'u', '8615', '6233', 'Y', 'f', '2413', 'J', '2265', '8145', '3443', 'g', 'L', 's', '3935', 'F', 529, 'N', 'm', 'X', 'O', 4997, 'V', 2571, 'k', 4895, 6873, 'p', 'l', 4897, 'K', 'T', 'U', 'p', 5741, 'o', 'U'], ['f', 'h', 1213, 3293, 'u', 'f', 'Y', 6669, 'p', 'b', 'K', 'u', '3213', 'F', '7919', '1153', 'k', '6239', 'G', 'K', 'U', 's', 'G', '5269', '5187', 'C', '4139', '4617', 'u', '8615', '6233', 'Y', 'f', '2413', 'J', '2265', '8145', '3443', 'g', 'L', 's', '3935', 'S', 6371, 'y', 6577, 's', 'X', 8877, 8369, 'H', 'T', 'w', 's', 6715, 'I', 'w', 'w', 4957, 3993, 8081, 'W', 'C', 'H', 'I', 225, 'z', 5535, 785]