In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['F', 'E', 6043, 1381, 'J', '8613', 'N', 'I', 'v', 'P', '311', 'Y', 4619, 'i', 5339, 'm'], ['A', 'K', 5037, 3793, 5839, '8613', 'N', 'I', 'v', 'P', '311', 'x', 'I', 'T', 'd', 4891, 7327]