In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9381, 'E', 'u', 6867, '5471', 'D', 'V', '1453', 'i', '5213', '1455', 'l', 'Y', '3321', 'b', 'R', '5311', 'V', 'Q', '3849', 'S', 'F', 'E', 'T', 9497, 6779, 7079, 3199, 2365, 9517, 'Z', 1727, 'j'], ['W', 1975, 'D', 'X', 2663, 'C', 5153, 'v', '5471', 'D', 'V', '1453', 'i', '5213', '1455', 'l', 'Y', '3321', 'b', 'R', '5311', 'V', 'Q', '3849', 'h', 1797, 'R', 1189, 'R', 7915, 9029, 's', 7573, 'u', 'V', 't']