In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 'F', 'S', 3325, 925, 6869, 'q', 'Q', 'Z', 8357, 'B', 4139, 'o', 'r', '1429', '623', 'W', '4611', '9035', 'J', '4581', '7071', '1701', 'J', '423', '9627', '8723', '3121', 'n', 'A', 9119, 3205, 'i', 1467, 's'], ['C', 4137, 9031, '1429', '623', 'W', '4611', '9035', 'J', '4581', '7071', '1701', 'J', '423', '9627', '8723', '3121', 'Z', 4509, 'R', 'C', 'p', 1397, 'r', 'J', 5781, 5403]