In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 9823, 3581, 'n', 'l', 'j', 'Y', 'a', '2519', 'Y', 'b', 'k', 'v', '1199', 'J', 'f', 'u', '5137', '9329', 'd', 'P', 'x', 'W', 'i', 4735, 'O', 7071, 4263, 'H', 9729, 'B', 'd', 8181, 1071, 3181, 'k', 'R', 9979, 'c', 'F', 5527, 5287, 7071], ['U', 'w', 'F', 'C', 'w', 1111, 'R', 'U', 3195, 'S', 7981, 8679, 3925, 'x', 'n', 'l', 'j', 'Y', 'a', '2519', 'Y', 'b', 'k', 'v', '1199', 'J', 'f', 'u', '5137', '9329', 'd', 'P', 'x', 'W', 'p', 'd', 'x', 'B', 'T', 7041, 753, 1375]