In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7159, 'B', 2419, 8905, 'F', 'E', 'X', 3087, 'v', 6001, 6629, 4693, 'b', 'L', 't', 8965, 'O', 'i', 6057, '8477', 'q', '5545', '4115', '6551', '8645', 'r', '889', '6749', 'v', '1397', '1247', 'f', '6333', 'X', '10009', '1299', '8979', '1107', '2119', '505', 'G', 'O', '6739', 'P', 'k', 9703, 9751, 'd', 5567, 'd', 'y', 6753, 2999], ['t', 'O', 'B', 8847, 'h', 1719, 'f', 483, 'Y', '8477', 'q', '5545', '4115', '6551', '8645', 'r', '889', '6749', 'v', '1397', '1247', 'f', '6333', 'X', '10009', '1299', '8979', '1107', '2119', '505', 'G', 'O', '6739', 'P', 'v', 5985, 4961, 6807, 'U', 3551, 9585]