In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['J', 1007, 'j', '8903', 'x', '8923', '3349', '8699', 'U', '5519', '3593', 'L', 'N', '5917', '9273', 'H', '8419', '8533', 'F', 'K', 3435, 887, 7839, 4307, 5965, 'F', 'b', 1101, 2091, 'p', 'E', 6961, 4591, 5367, 'R', 'K'], ['I', 'g', 'j', '8903', 'x', '8923', '3349', '8699', 'U', '5519', '3593', 'L', 'N', '5917', '9273', 'H', '8419', '8533', 'F', 'T', 259, 4393, 'z', 8349, 8889, 'e', 2965]