In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9709, 'D', 'C', 5627, 'M', 't', 4807, 8693, 'I', 9157, 'x', 4791, 'u', 8459, 'W', 'Y', 's', '2241', '2111', '6485', 'd', 'b', '2413', '3547', 'r', 'P', 'N', '2541', 'G', '295', 'H', '179', '7291', '9759', '6953', 'C', 'i', 117, 5529, 'r', 'M', 7641, 2383, 2409, 2923, 8237, 8571, 8545, 't', 'J', 6709, 5827, 6665, 'M', 6907, 'A'], [7777, 'Z', 6511, 'o', 1525, 'D', 4573, 3149, 'W', 'Y', 's', '2241', '2111', '6485', 'd', 'b', '2413', '3547', 'r', 'P', 'N', '2541', 'G', '295', 'H', '179', '7291', '9759', '6953', 'p', 4855, 1101, 5613, 'w', 'J', 'h', 'H', 8961, 9025, 'm', 7303, 'V']