In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['S', 'z', 2417, 1089, 'w', 'k', 981, 'i', 'T', 8287, 'o', 6255, 'U', 5193, 9549, '9691', '7121', 'd', '6023', 'k', '861', 'n', 'U', '1537', 't', '7099', '505', 'u', '4589', 'Z', 'p', 'D', '5843', '3275', '3523', 'g', 'i', 5897, 'b', 2465, 6301, 'F', 'm', 'k', 'v', 2979, 9217, 6895, 3581, 'i', 'U', 2321, 3359, 'N'], [9815, 7189, 'A', 9731, 'l', 'I', 'm', 907, 9479, 'W', '9691', '7121', 'd', '6023', 'k', '861', 'n', 'U', '1537', 't', '7099', '505', 'u', '4589', 'Z', 'p', 'D', '5843', '3275', '3523', 'n', 'y', 't', 'T', 'l', 'U', 'i', 8957, 'l', 'i', 'v', 'S', 'n', 9473, 'X', 8141, 5157, 79, 9955, 3223]