In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['i', 'g', 4071, 'C', '9349', 't', 's', 'f', 'D', 'w', 'R', '1385', '239', 'q', 't', 'Q', '2957', '5773', '9499', '3685', 'T', 'J', '985', '3371', 'V', 'f', 'v', 'w', 'e', '6399', 'b', 'L', 'q', 'E', 'F', 'z', 'i', 'J', 6333, 'k', 6919, 'C', 2395, 'H', 9343, 7339, 1829, 'P'], [1649, 'n', 'q', 'o', 'C', '9349', 't', 's', 'f', 'D', 'w', 'R', '1385', '239', 'q', 't', 'Q', '2957', '5773', '9499', '3685', 'T', 'J', '985', '3371', 'V', 'f', 'v', 'w', 'e', '6399', 'b', 'Q', 'c', 425, 1183, 1829, 3027, 8715, 2309, 'O', 513, 'N', 7827, 'n', 4851, 'M', 1743, 'r', 'S', 7773, 1167, 'e', 'Z', 5711, 8979, 8023, 'u', 'f']