In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['V', 4609, '6431', 'A', 't', 'i', 'r', 'm', 'c', '6387', '3573', '3789', 'i', 'q', 'e', 'w', 'p', 's', 'J', 'f', 'K', 'l', '3939', '9759', '1885', '5863', 'e', 9769, 3747, 3747, 'B', 'f', 7037, 5821, 'p', 'A', 3067, 'X', 'I', 1473, 7829, 'w', 6277, 8079], ['P', 5505, '6431', 'A', 't', 'i', 'r', 'm', 'c', '6387', '3573', '3789', 'i', 'q', 'e', 'w', 'p', 's', 'J', 'f', 'K', 'l', '3939', '9759', '1885', '5863', 'p', 'C', 1625, 1755, 1201, 223, 9841, 3473, 's']