In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7669, 'H', 'a', 'C', 1493, '5787', '991', '9447', 'A', 'R', 'B', 'D', 'E', 'h', 'E', 'r', '7863', '8749', '5615', 'u', 'B', '7115', '1033', 'S', '9723', '1337', '4043', 'V', 'h', 'W', 'q', 'S', 'q', 3065, 'W', 'I', 'T', 1207, 'D', 'M', 'l', 8093, 'F', 6807, 'f', 'N', 'z', 8185, 'r'], [353, 'g', 'x', 'y', 3443, 3263, 'Y', 249, 'I', 7491, 'B', 'A', 7047, 9997, 5897, 'y', 933, 'u', 'H', '5787', '991', '9447', 'A', 'R', 'B', 'D', 'E', 'h', 'E', 'r', '7863', '8749', '5615', 'u', 'B', '7115', '1033', 'S', '9723', '1337', '4043', 'V', 'h', 6601, 'I', 4881, 701, 'u', 'H', 'H', 'A', 't']