In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 4605, 2727, 3143, 277, 4829, 'e', 'U', 'Y', 2905, 9601, 'G', 3571, 8731, 'l', 4163, 153, 'X', 7657, 'K', 8777, 'g', 'K', 6521, 'L', 'q', 'b', 'C', 'y', '607', 'I', '8733', 'N', '1981', 'q', 'O', '191', '7699', 'U', 'e', '3521', 'b', 'O', 'j', 'A', 'T', '9511', '6029', 'S', 'o', 'x', 'U', 9723, 5643, 'Y', 'b', 5353, 'p', 'C', 3201, 8763, 'n', 901, 4689, 'S', 'Q', 'L', 'Y', 3375, 6121, 5751, 'P'], [9341, 'm', 1333, 6443, 8509, 'M', 'b', 'g', 6935, 8073, 8845, 't', 3, 3891, 'Z', 'b', 'e', 'x', 'a', 'w', 4225, 'L', 'q', 'b', 'C', 'y', '607', 'I', '8733', 'N', '1981', 'q', 'O', '191', '7699', 'U', 'e', '3521', 'b', 'O', 'j', 'A', 'T', '9511', '6029', 'S', 'o', 'x', 'F', 61, 'o', 'X', 'k', 'f', 567, 7101, 3621, 'Q', 1335, 'O', 'B', 'o', 'a', 6269, 1529, 3499, 1483]