In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7115, 8923, 'b', 'A', 1461, 'H', 8371, 'W', 'Q', 9277, 23, 'p', 'Y', 'Q', '6105', 'T', 'A', 'V', 'I', '8871', 'r', 'd', '2831', 'U', 'E', 'V', '9289', '9383', 'N', '5805', 'u', 'F', 'i', 8729, 8703, 'Z', 'K', 'l', 6171, 'F', 2599, 6417, 3271, 669, 8241, 3593], ['m', 8635, 3761, 'B', 9675, 'K', 'q', 2167, 8541, 'p', 'Y', 'Q', '6105', 'T', 'A', 'V', 'I', '8871', 'r', 'd', '2831', 'U', 'E', 'V', '9289', '9383', 'N', '5805', 'u', 'F', 'k', 'L', 3721, 'p', 'd', 'e', 9799, 'W', 'o', 5931, 3851, 'Y']