In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6809, 3603, 1207, 8315, 1651, 'a', 'i', 'l', 'z', 'b', 7867, 7737, '8017', '8069', 'E', '2043', '2413', 'f', '3269', '3873', '2729', 's', 'o', '6371', 'J', '71', 'y', 'H', '947', 'D', 'r', 'E', 'm', 3747, 'g', 'v', 'w', 9363, 8987, 2605, 'U', 't', 7295, 'J', 'y', 7843, 2655], ['Z', 2493, 'R', 8239, 'X', 'Y', 'I', 'M', 8583, '8017', '8069', 'E', '2043', '2413', 'f', '3269', '3873', '2729', 's', 'o', '6371', 'J', '71', 'y', 'H', '947', 'D', 'r', 'E', 'l', 'Z', 6319, 4377, 6703, 3745, 4303, 2081, 7771, 'E', 'O', 'E', 8899, 'p', 'p']