In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
--------
Question: ['R', 'k', 'g', 4045, 'W', '4923', '9161', '4031', '7443', 'f', 'U', 2683, 'Y'], [943, 'v', '4923', '9161', '4031', '7443', 'f', 't', 'm', 9213]

Answer: 4923, 9161, 4031, 7443, f


Question: ['t', 3815, '7171', 'I', 'm', '3035', 'a', 'V', 2889, 'm'], [5911, 4525, 'R', 133, '7171', 'I', 'm', '3035', 'P', 'W', 'f', 4045]

Answer: 7171, I, m, 3035


Question: ['x', 'c', 'J', 'M', 2197, 8229, 'z', 'e', 'u', 6971, 'p', 1453, 'T', 'R', 'n', 2407, '4443', 'n', '8369', 'R', 'C', '401', 'E', '4879', 'U', '4341', '919', 'U', 'Z', 'O', '9629', '7765', 'm', 'l', 'x', '9117', '4309', '8157', '2997', 'u', 4603, 4335, 6763, 1897, 6097, 'Q'], [909, 4877, 6293, 't', 'W', 3819, 'Q', 8631, 5715, '4443', 'n', '8369', 'R', 'C', '401', 'E', '4879', 'U', '4341', '919', 'U', 'Z', 'O', '9629', '7765', 'm', 'l', 'x', '9117', '4309', '8157', '2997', 'F', 'Y', 9241]

Answer:
4443, n, 8369, R, C, 401, E, 4879, U, 4341, 919, U, Z, O, 9629, 7765, m, l, x, 9117, 4309, 8157, 2997