In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['k', 'I', 2485, 'F', 'o', '5411', 'j', '3289', '697', 'A', 'D', 'P', '513', 'X', '3111', 'W', 'z', 7319, 'a', 'C', 3035, 3649, 'f', 'I'], ['p', 3589, 3075, 'b', 5279, 'f', 'p', 'w', 'B', 6831, 'i', 'o', '5411', 'j', '3289', '697', 'A', 'D', 'P', '513', 'X', '3111', 'W', 'q', 7299, 4307, 'u', 'Z', 'P', 'D', 'x']