In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['L', 37, 4937, 'e', 3299, 'h', 3913, 3731, 'j', 983, '3613', '4875', '6539', 't', 'd', 'j', 'm', '5493', '2401', 'h', 'i', 'z', 'U', '5705', '2095', '5441', '1001', 'U', '4237', '9133', 'y', '2365', 'e', '7163', 's', '2465', 'x', '5363', 'm', 1601, 'j', 'r'], ['O', 'g', 'd', 'J', 3423, 'y', 6033, 9371, 'l', 'C', 'Q', 'P', 9313, 'y', 's', 1271, 4099, 3279, 5909, 2249, 'L', 7167, 'i', 1521, 'C', 3941, '3613', '4875', '6539', 't', 'd', 'j', 'm', '5493', '2401', 'h', 'i', 'z', 'U', '5705', '2095', '5441', '1001', 'U', '4237', '9133', 'y', '2365', 'e', '7163', 's', '2465', 'x', '5363', 'A', 6439, 'R']