In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 'I', 't', 'b', 9175, 2827, 'P', 'v', 8293, 'c', 1863, 'J', 's', '6749', '5147', 'e', 'O', '8605', '613', '7647', '5691', 'v', '2303', '7061', '1091', '8563', 'T', '511', 'U', '8991', '231', 'f', '8793', '2147', '6075', 'p', 'i', 9597, 4909, 'J'], ['S', 'a', 9123, 'I', 'F', 'z', 3481, 4235, 'X', 'I', 6447, 6365, 'T', '6749', '5147', 'e', 'O', '8605', '613', '7647', '5691', 'v', '2303', '7061', '1091', '8563', 'T', '511', 'U', '8991', '231', 'f', '8793', '2147', '6075', 'p', 'Q', 'R', 'W', 'm', 719, 'A', 'h', 3093, 'O', 8221, 9879, 'W', 6953, 8729, 2853, 3651, 'X', 2079, 4499, 'Q', 7143]