In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['i', 'y', 'E', 3515, 'h', 'Z', 'L', 'F', 'Q', 3509, 2891, '9743', '433', '861', '7497', 'l', 'I', '5331', 'v', 'n', '9547', '61', 'k', '493', 'U', '1451', 'f', 'n', '8345', 'N', '1417', '3167', '7961', 'T', 's', '6913', 'P', '2475', '1039', 'f', 8415, 'r', 'm'], [5667, 9263, 'i', 2643, 6947, 6393, 'V', 713, 'c', 4299, 9037, 9097, 'k', 3341, 'Q', 'w', 'T', 6627, 7631, 4929, 9959, 's', 'A', '9743', '433', '861', '7497', 'l', 'I', '5331', 'v', 'n', '9547', '61', 'k', '493', 'U', '1451', 'f', 'n', '8345', 'N', '1417', '3167', '7961', 'T', 's', '6913', 'P', '2475', '1039', 'E', 'p', 'U', 'G', 9435, 957, 'N', 6629, 565, 25, 'e', 6019, 827, 8283, 'F', 'J', 'Z', 'g', 'f', 'F', 1299, 2479, 463, 't', 't', 8541, 4571]