In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5657, 'u', 3373, 6965, 'v', 'H', 'A', 'D', 'W', 'S', '7301', '8603', '3303', '2907', 'S', 'M', 't', 'Q', 'e', 'J', 'q', 'V', 'X', 'D', '7265', '9537', '7197', 'F', 2827, 'u', 7901, 'u', 6409, 5157, 'K', 9157, 8215], ['a', 9483, 8685, 2791, 'c', 1561, 'n', 'D', 'W', 'S', '7301', '8603', '3303', '2907', 'S', 'M', 't', 'Q', 'e', 'J', 'q', 'V', 'X', 'D', '7265', '9537', '7197', 'c', 1597, 'Y', 1897, 2971, 'p', 'q', 1357, 6241, 'C', 'f', 't']