In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 2433, 4933, 95, 693, 'T', 2961, 9771, 'T', 'W', 'F', 'R', 2995, 'c', 'u', 7177, 'y', 1581, 'M', 319, '9439', '1627', 'S', '5879', '7699', 'W', 'l', '2579', '641', 'b', '7745', '5881', 'u', '2677', 'n', '5915', 'x', 'W', 'p', 'G', '1287', '6925', 's', 'W', 2865, 'd', 'o', 7253, 's', 'Z', 391, 6071, 'w', 8539], ['W', 'H', 'B', 7659, 'i', 'a', 3637, 'X', 'o', 'H', 'I', 5253, 6171, 'E', 2081, 'c', 5707, 8961, 'h', 'w', 9935, 'd', 273, '9439', '1627', 'S', '5879', '7699', 'W', 'l', '2579', '641', 'b', '7745', '5881', 'u', '2677', 'n', '5915', 'x', 'W', 'p', 'G', '1287', '6925', 's', 'v', 'R', 7985, 'A', 'e', 's', 61, 'B', 7495, 2997, 8319, 'Q', 'y', 'U', 'G', 6479, 'r', 'a', 'u', 3575, 'A']