In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7465, 3469, 8523, 5973, 9435, 5837, 'h', 7427, 'N', 3135, '9855', 'R', '5757', 'r', '2259', '343', 'j', 'F', '6879', 'c', 's', 'T', 'r', 'z', 'n', 7775, 'o', 'u', 'B', 'F', 6215, 'N', 9003], ['s', 2245, 2633, 8079, 'M', 'y', 'P', 4239, '9855', 'R', '5757', 'r', '2259', '343', 'j', 'F', '6879', 'c', 's', 'T', 'e', 6859, 'k', 'o', 339, 9039, 6347, 'h', 'l', 'E', 1683, 'K']