In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 'R', 'q', 'S', 'm', 'x', '179', '4995', 'Y', 't', '207', 'E', 'V', '1979', '7541', 'O', 'N', '1523', 'k', 'n', 'y', 'D', 'P', '5583', '4523', '6047', '9393', 'j', 7275, 'a', 'X', 'x', 4321, 'N', 6409, 't', 3279, 'l', 901, 'V', 9145, 4163, 8087, 7949, 'B', 5245, 9307], ['y', 'K', '179', '4995', 'Y', 't', '207', 'E', 'V', '1979', '7541', 'O', 'N', '1523', 'k', 'n', 'y', 'D', 'P', '5583', '4523', '6047', '9393', 'k', 'V', 1953, 8463, 'o', 'd', 'e', 'W', 'H', 'T', 'G', 5333, 2787, 447, 3737]