In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[EX Q]: ['P', 8059, 'A', 385, 't', 1999, 269, 'T', 'B', 'S', '5291', 'b', 'x', 'o', '7813', 'R', 'D', '1301', '2079', 'H', '3587', '1325', '8977', '5565', 'u', 'v', 'D', 'I', '6267', 'H', '6663', 'I', 'B', 'f', '2383', 'K', 6409, 'W', 'h', 9673, 1829, 'K', 'A'], [1099, 1609, 'q', 9603, 'B', 3251, 'o', 'x', 1197, 'O', 'u', 't', 'K', 'c', 1185, 'l', 'v', 'e', 'q', 9255, 'u', 'S', '5291', 'b', 'x', 'o', '7813', 'R', 'D', '1301', '2079', 'H', '3587', '1325', '8977', '5565', 'u', 'v', 'D', 'I', '6267', 'H', '6663', 'I', 'B', 'f', '2383', 'V', 6939]
[EX A]: S, 5291, b, x, o, 7813, R, D, 1301, 2079, H, 3587, 1325, 8977, 5565, u, v, D, I, 6267, H, 6663, I, B, f, 2383

[EX Q]: ['t', 3815, '7171', 'I', 'm', '3035', 'a', 'V', 2889, 'm'], [5911, 4525, 'R', 133, '7171', 'I', 'm', '3035', 'P', 'W', 'f', 4045]
[EX A]: 7171, I, m, 3035

[EX Q]: [6253, 4417, 7319, 'r', 'R', 'r', '6803', '7093', 'v', 'R', '8201', 'y', 'H', 5393], [8917, 'a', 4791, 'r', '6803', '7093', 'v', 'R', '8201', 'y', 'W', 7365, 8117, 'J']
[EX A]:
r, 6803, 7093, v, R, 8201, y