In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7257, 'p', 'o', 7595, 'w', 'S', 'U', '3739', 'Z', 'n', 'm', 'M', '6421', '3519', 'B', '2639', 'a', '8269', 'j', '2425', 'E', 'E', 'V', 'H', 'D', 'd', 'M', 'o', '3915', 'v', 'P', 'l', 'i', 'q', 6171, 397, 1631], [4641, 1471, 5915, 1657, 4847, 'v', 3719, 'U', 9943, 'v', 2189, 9163, 'Y', 'C', 'e', 3867, 3395, 'm', 5999, 9653, 'K', 'H', 2767, 1999, 'w', 'S', 'U', '3739', 'Z', 'n', 'm', 'M', '6421', '3519', 'B', '2639', 'a', '8269', 'j', '2425', 'E', 'E', 'V', 'H', 'D', 'd', 'M', 'o', '3915', 'g', 5715, 'm', 'K', 'g', 'Q', 5439, 7327, 'V', 1335, 885, 9993, 'n', 2303, 1305, 9329, 'i', 5357, 't', 7567, 2211, 787, 7459]