In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['N', 7339, 'i', 4963, '7953', '5697', '2725', '5835', 'F', 'c', 'r', 'F', 'a', 'N', 'g', '1485', '4341', '6571', '7897', 'O', 'q', '6175', '8735', 'Y', '2125', '4645', '9381', 'R', 'k', '2593', '9985', 'D', '5683', 'N', 'q', 'z', 8905, 4579, 1887, 3849, 845, 7381], [783, 8637, 'T', 'N', 'X', 8103, 7665, 6255, 9551, 'k', 5633, 9821, 2171, 'K', 'e', 'l', 881, 3693, 'U', '7953', '5697', '2725', '5835', 'F', 'c', 'r', 'F', 'a', 'N', 'g', '1485', '4341', '6571', '7897', 'O', 'q', '6175', '8735', 'Y', '2125', '4645', '9381', 'R', 'k', '2593', '9985', 'D', '5683', 'b', 'r', 'a', 5909, 7059, 1855, 4963, 3443, 157, 539, 2371, 'I', 4023, 2883, 6815, 7639, 'Z', 'A', 3, 1515, 2967, 5295]