In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['P', 'w', 2685, 'd', 'x', 'V', 7089, 5261, 9501, 'V', 3679, 7933, 'U', 'p', 'q', 3725, 's', 3477, 4919, 8875, 4357, 1919, 6915, 7221, '6819', '6943', '4645', '9411', '7601', 'p', 'l', '4893', 'g', 'j', 'H', '4929', '8221', '5779', 'G', '2605', '39', '8535', '1529', '1261', '7889', '8239', '5385', 'P', 'r', 681, 'b', 8823, 'X', 'a', 'A', 1403, 6239, 7899, 5891, 8527, 'G', 'a', 3997, 'r'], [5429, 'M', 'k', 'J', 5593, 'i', 4593, 'M', 1315, '6819', '6943', '4645', '9411', '7601', 'p', 'l', '4893', 'g', 'j', 'H', '4929', '8221', '5779', 'G', '2605', '39', '8535', '1529', '1261', '7889', '8239', '5385', 'P', 'k', 'x', 'S', 7961, 'd', 'O', 's', 8905, 77, 485, 4115, 9739, 9871, 'R', 7139, 3497, 3909, 'N', 3221]