In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['R', 7061, 195, 3307, 2629, 119, 'C', 'W', '8793', '599', '8909', '5593', 'e', '487', 'j', '4351', '6699', '683', 'S', 'L', 'U', 'B', 'J', 7827, 'S', 4371, 1039], ['U', 'm', 'v', 6683, 'A', 7979, 751, 'v', 2909, 'U', 'g', 2997, 'S', 'C', 'W', '8793', '599', '8909', '5593', 'e', '487', 'j', '4351', '6699', '683', 'S', 'L', 'L', 2349, 'o', 7773, 'F', 2177]