In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['a', 7355, 8097, 4497, 375, 5955, 'a', 7355, 'R', 'v', 'd', 5549, 'H', 'k', '9283', 'h', 'b', '7853', 'W', '3521', 'a', '3389', 'g', 'h', '8089', '8111', '2503', 'X', '9997', 'n', '9991', '6619', 's', 2079, 2987, 'P', 'l', 'A', 'k', 3589, 'h', 'u', 'n', 6541], [3525, 8373, 113, 'J', 'H', 'k', '9283', 'h', 'b', '7853', 'W', '3521', 'a', '3389', 'g', 'h', '8089', '8111', '2503', 'X', '9997', 'n', '9991', '6619', 'c', 5285, 'Z', 'b', 'u', 6711, 'b', 'P', 8349, 2621, 'n', 5227, 'h']