In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['j', 'I', 1349, 8867, 2915, 4811, 'S', 3447, 6375, 'x', 'i', 'Z', 'k', 'L', 'd', 'y', 'u', 't', 'r', '6301', 'J', '8153', '7835', '4601', 'P', 'q', 'a', '7887', 'p', 'v', '4751', '3051', 'H', '975', '9621', '1401', '1709', '2289', '7237', '5319', 'X', 'g', 'l', 'L', 'I', 8671, 'B', 'y'], ['q', 'U', 'D', 'E', 5655, 4507, 4745, 'n', 'Q', 'r', 3353, 1401, 5683, 1785, 'h', 9165, 9713, 933, 'x', 'r', '6301', 'J', '8153', '7835', '4601', 'P', 'q', 'a', '7887', 'p', 'v', '4751', '3051', 'H', '975', '9621', '1401', '1709', '2289', '7237', '5319', 'X', 'W', 333, 'M', 2107, 'C', 7699, 'N', 4223, 9755, 'L', 7747]