In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['p', 6005, 'R', 3347, '5267', 'B', '7773', '4339', '7347', 'U', 'Q', 'F', '6399', 'j', '3453', 'P', 'U', 'x', 'Z', 493, 'l', 'y', 'd', 1033, 'T'], [9603, 3197, 'r', 'v', 'i', 'E', 'Q', 1155, 'b', '5267', 'B', '7773', '4339', '7347', 'U', 'Q', 'F', '6399', 'j', '3453', 'P', 'U', 'u', 'x', 4111, 2691, 989, 'c', 'R', 'p', 'G']