In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[4373, 'n', 1589, 8717, 5883, 'B', 'i', 9757, 'M', 9569, 3111, 'p', 8027, 'n', 'v', 6429, 1801, 5823, 'w', 2127, 6335, 4017, 's', 'C', 3641, 4079, 'c', '6791', 'S', 'i', '8055', 'd', 'F', 'e', '9337', 'R', 'v', '6555', '1261', '3005', '3759', 'D', 'M', '2447', 'u', '2145', '6179', 'T', '5611', '1683', 'F', '2007', '8211', '671', 'l', 'y', 'q', 4553, 8583, 7189, 'f', 'J'], ['z', 7617, 'k', 'q', 't', 7503, 'w', 471, 'n', 'S', 'z', 'm', 4845, 'l', 4755, 'K', 'U', 'P', 5897, 'P', 'x', 'v', 4607, 'c', '6791', 'S', 'i', '8055', 'd', 'F', 'e', '9337', 'R', 'v', '6555', '1261', '3005', '3759', 'D', 'M', '2447', 'u', '2145', '6179', 'T', '5611', '1683', 'F', '2007', '8211', '671', 'c', 6467, 9185, 1709, 767, 'Z', 'T', 'l', 's', 'w', 'n']