In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['s', 'I', 8359, 8533, 4181, 15, 959, 5097, '2867', '275', '9253', 'n', 'A', '7319', 'x', '1905', '4951', 'z', '367', 'g', '2597', 'M', '3755', 'M', 'y', 'y', 'e', '3887', 'z', 'n', '7969', '9755', '4931', '2675', '4997', 'y', 379], [5767, 7713, 'x', '2867', '275', '9253', 'n', 'A', '7319', 'x', '1905', '4951', 'z', '367', 'g', '2597', 'M', '3755', 'M', 'y', 'y', 'e', '3887', 'z', 'n', '7969', '9755', '4931', '2675', '4997', 'u', 2555, 3303, 785, 'F', 'y', 6439, 6303, 'L', 6023, 9043, 'Z', 1623, 'R', 573, 'M', 'v', 6367, 573, 7903, 815, 'V']