In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['v', 4045, 'D', 'P', 181, 4575, 'E', 'X', 'f', 2495, 'b', 5507, 8921, 'H', 8327, '893', 'f', '4969', 'B', 'A', 'T', 'V', 's', 'W', 'p', '5059', '6969', '9305', '4813', 's', 'X', 'y', 487, 'o', 'j', 'H', 'M', 2043, 8101, 'r', 5675, 'H'], ['X', 2089, 517, '893', 'f', '4969', 'B', 'A', 'T', 'V', 's', 'W', 'p', '5059', '6969', '9305', '4813', 's', 'H', 'P', 'M', 'X', 'B', 'y', 183, 3033, 2469, 2793, 8975]