In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['A', 4097, 'M', 7691, 1409, 4049, 'v', 9301, 'Z', 'e', 'D', 'o', 'J', 'V', 'Y', 4371, 'r', 'V', 921, 5087, 'e', 9709, 9989, 'e', 'R', 'P', 3903, 4737, '7273', '2097', '9645', 'q', '3931', '2891', 'M', '9979', 'c', '6381', '9855', 'p', '307', '4267', 't', 'o', '7073', 'n', 'K', 'k', '2139', '7521', '9747', '5317', 'k', 'q', 'w', 'u', '7411', 'b', 'c', 'a', 'd', 'v', 'j', 4847, 7875, 'V'], [6027, 683, 5415, 'c', 'T', 3767, 8163, 'K', 6337, 1425, 7797, 7529, 5079, 'I', 'p', 'R', 'J', 2123, 2293, 9201, 4953, 'f', 'B', 5233, 9733, 'G', 'U', '7273', '2097', '9645', 'q', '3931', '2891', 'M', '9979', 'c', '6381', '9855', 'p', '307', '4267', 't', 'o', '7073', 'n', 'K', 'k', '2139', '7521', '9747', '5317', 'k', 'q', 'w', 'u', '7411', 'E', 2867, 945, 'q', 8533, 5291, 8777, 71, 'h', 'N', 'y', 'w', 'M', 'z', 75, 'q', 6433]