In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7435, 3289, 6763, '6475', '477', '4767', 'L', 'M', 'R', '2227', '8281', 'P', 'y', 'p', 'q', '2635', '4271', 'S', '7201', '4503', '5859', '8773', '8681', '3093', '3805', 'f', 'e', 'l', 'X', 'K', 3501, 7877, 6761, 3037, 'S', 9475, 3039, 't', 3893, 'w', 6837, 5383, 'l', 7815, 1817, 'S', 575], ['G', 'E', 'Z', 'o', 'E', 'k', 'D', 'B', '6475', '477', '4767', 'L', 'M', 'R', '2227', '8281', 'P', 'y', 'p', 'q', '2635', '4271', 'S', '7201', '4503', '5859', '8773', '8681', '3093', '3805', 'f', 'e', 'H', 5119, 853, 5025, 7955, 7561, 325]