In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['T', 'Y', 499, 9353, 'L', 7273, 'z', 9115, 5565, 6475, 3057, 'p', 'S', 3429, 9015, 't', 'b', '5201', 'b', 'i', '8459', 'F', '159', '5037', '3291', 'l', '7345', '25', '4819', 'B', '1105', 'n', 'm', 'p', '2611', '2103', '6147', '2237', 'G', '5797', 'F', 'F', 'y', 'n', 'j', 'C', 'e', 1867, 6853, 'L', 'b', 3437, 'n', 6533, 'd', 'q'], [7869, 9943, 3231, 'b', 6619, 'G', 'a', 1525, 'v', 4209, 3745, 4507, 'x', 3165, 'Z', 'L', 7049, 't', 'b', '5201', 'b', 'i', '8459', 'F', '159', '5037', '3291', 'l', '7345', '25', '4819', 'B', '1105', 'n', 'm', 'p', '2611', '2103', '6147', '2237', 'G', '5797', 'F', 'x', 4953, 'N', 'L', 'S', 'm', 'P', 1709, 'G', 'D', 'w', 5341, 'V', 5413, 'A', 's']