In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['K', 6723, 7053, 'g', 6793, 'h', 'C', 'H', 'J', 'K', '1061', '9585', 'F', 'l', '5651', 'f', 'P', '9147', '5227', '2861', '6421', 'V', '1009', '6639', '3701', 'T', 'o', 'j', 5777, 3173, 'N', 'Q', 'O', 'm', 4693], ['r', 5349, 503, 'Q', 8435, 'Y', 6633, 'W', 'J', 'K', '1061', '9585', 'F', 'l', '5651', 'f', 'P', '9147', '5227', '2861', '6421', 'V', '1009', '6639', '3701', 'Q', 'Z', 8433, 'h', 8205, 'm', 6605, 5051, 'w', 'o', 3177, 't', 9005, 'v', 'G']