In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['U', 'T', 3859, 'v', 655, 'k', 9583, 'h', 1643, 7869, 9913, 1861, 8409, 3225, 'P', 'D', 'c', 9981, 'R', '3817', '553', '2493', 'g', '2923', 'z', '4305', '5743', 'M', '7509', '125', '1567', 'g', 'W', '1079', 'H', 'Z', 'G', '9423', '7721', '1149', '3919', 'J', '8843', 'h', '3805', 'B', '8887', 'r', 'Z', 'J', 'i', 'a', 'i', 'F', 3789, 'H', 'Q', 4149, 't'], ['b', 'C', 201, 'J', 5965, 379, 591, 'V', 'W', 'i', 'I', 7237, 4175, 'Q', 'y', 'V', 1425, 1681, 'q', 2615, 'l', 3201, 1787, 'e', 8483, '3817', '553', '2493', 'g', '2923', 'z', '4305', '5743', 'M', '7509', '125', '1567', 'g', 'W', '1079', 'H', 'Z', 'G', '9423', '7721', '1149', '3919', 'J', '8843', 'h', '3805', 'B', '8887', 'O', 315, 7867, 1041, 'n', 8809, 3169, 'J', 'O', 'L', 'D', 'f', 9181, 8371, 9799, 'c', 'n', 'R', 't']