In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[2001, 2739, 7183, 5637, 5587, 685, 'G', '107', 'N', 'i', '687', 'm', '161', 'd', '4831', '7457', 'l', 'F', '2137', 'p', '2175', 'x', 'a', 'r', 'D', '6933', '9765', 'x', '5659', 'Y', 'j', 'D', 'b', 'u', 9343, 't', 'z', 6445, 's', 949, 'L', 6259, 2137, 'b', 'W', 6925, 4419, 'P', 1159, 't', 'w', 2379, 4683, 't', 'N', 4329], ['E', 7669, 'R', 1561, '107', 'N', 'i', '687', 'm', '161', 'd', '4831', '7457', 'l', 'F', '2137', 'p', '2175', 'x', 'a', 'r', 'D', '6933', '9765', 'x', '5659', 'Y', 'j', 'D', 'b', 'U', 'v', 3851, 'Y', 'o', 'R', 'C', 713, 'M', 't', 'P', 7615, 'Q']