In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9431, 'A', 'f', 1611, 'n', 5383, 9971, 3545, 'c', 'm', 'J', 1445, 4273, 'n', 8617, 5935, 3825, 4145, 9437, 'Q', 879, 'o', '5683', '2337', '7409', 'P', 'h', '4725', '3995', '6085', 'H', '5255', '6459', '1857', '4377', 'C', 'I', 'W', '6041', '6885', '7069', 'X', 'P', '5719', 'X', 'u', 4575, 4539, 7323, 8193, 'U', 'E', 'x', 5723, 3791, 8139, 6443], ['O', 'l', 'l', 8735, 'T', 'K', 1031, 6009, 4009, 's', 2883, 3629, 315, 6959, 6815, 'a', '5683', '2337', '7409', 'P', 'h', '4725', '3995', '6085', 'H', '5255', '6459', '1857', '4377', 'C', 'I', 'W', '6041', '6885', '7069', 'X', 'P', '5719', 'K', 'd', 103, 'F', 'C', 'g', 'j', 6639, 8801, 'H', 7421, 'N', 'c', 5513, 'm', 9759, 4277]