In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[1191, 'l', 'c', 2465, 'E', 3905, 'w', 'J', 'M', '6553', 't', 'g', 'T', '8203', '9637', '1829', '7751', 'K', 'r', 5007, 'C', 'Q', 4721, 1905, 'w', 'Z'], [2503, 1975, 'E', 707, 8587, 4319, 7645, 4529, 'C', 'r', 'w', 'J', 'M', '6553', 't', 'g', 'T', '8203', '9637', '1829', '7751', 'K', 'Z', 'Y', 3235, 'Q', 'I', 'v', 4161, 6621, 'v', 7939, 'R']