In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['J', 'x', 753, 8003, 'F', 'g', 'p', 7083, 6905, 'O', 'g', 's', 'Y', 'C', 'x', 'a', 1203, 'E', 1131, 'I', '6869', '5695', 'Y', '3291', '5643', 'o', '5075', '2523', '529', '3431', '6077', '3295', '5143', 'W', '5787', '3901', '397', '9857', 'k', 'Q', 't', 'K', 's', 't', 6719, 2639], ['C', 'Q', 'j', 'p', 5883, 5707, 'x', 'v', 4371, 'I', '6869', '5695', 'Y', '3291', '5643', 'o', '5075', '2523', '529', '3431', '6077', '3295', '5143', 'W', '5787', '3901', '397', '9857', 'k', 'Q', 't', 'K', 'h', 8497, 'E', 'Y', 7351, 'K', 5415, 'a', 9541, 'Q', 9095, 'z', 'f', 'g', 'Y', 5635, 7029, 6533]