In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['F', 2947, 'M', 'n', 7209, 'M', 1593, 6787, 4555, 5827, 9203, 5619, 8871, 2931, 8007, 'R', 7889, 'Z', 'w', 'M', 's', 'V', 9421, 'O', 'U', 'u', 7633, 'F', 'w', '4907', '8607', '769', 'M', 'c', 'd', 'X', 'T', 'M', '5699', 'I', 'X', '6489', 'c', '1395', '5543', 'C', 'a', '43', '8669', '7349', '9469', '7469', 'e', '4179', '6063', '3655', '2523', 't', 'a', 3633, 'A'], ['U', 4613, 'F', 'm', 6491, 8175, 6093, 6921, 9799, 'I', 4993, 6051, 'w', '4907', '8607', '769', 'M', 'c', 'd', 'X', 'T', 'M', '5699', 'I', 'X', '6489', 'c', '1395', '5543', 'C', 'a', '43', '8669', '7349', '9469', '7469', 'e', '4179', '6063', '3655', '2523', 't', 'H', 'S', 'y', 5993, 8965, 3623, 8979, 'm', 'x', 'W', 6179, 'D', 4567]