In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'p', 'k', 8821, 5869, 'K', 9853, 'p', 'I', 2411, 'd', 'g', 33, 'n', 'm', 'p', 4353, 107, 'z', 'O', 7267, 9541, 'B', 'T', 'q', 6785, 5535, 1517, 725, 2103, '1005', '539', 'L', 'M', '197', 'e', '7783', 'S', 'c', '1117', 'G', '6991', 'S', '6979', 'z', '5551', '2969', '9539', 'i', 'l', 'f', '4831', 'K', '9059', '1681', '8587', '861', '6579', '8085', '3293', 'l', 'n', 'j', 817, 'Z', 'p', 2673, 'x', 8641, 2165, 4807, 3973, 7993, 'F', 9375, 9863, 'f', 8877, 2583, 3647, 5377, 'D', 'J', 8413, 6647, 3839, 3533], [1209, 3665, '1005', '539', 'L', 'M', '197', 'e', '7783', 'S', 'c', '1117', 'G', '6991', 'S', '6979', 'z', '5551', '2969', '9539', 'i', 'l', 'f', '4831', 'K', '9059', '1681', '8587', '861', '6579', '8085', '3293', 'M', 5597, 9173, 'W', 's', 893, 1181, 'E', 7635, 3867, 'T', 's', 'm', 8013, 'U', 'O', 4973, 'I', 9991]