In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 'u', 8499, 6385, 4801, 6237, 'r', '8179', '5605', 'c', 'D', '3723', 'g', 'N', '8295', 's', '7815', '8937', '9309', '6129', '7979', '6329', '141', 'u', '8693', 't', '8409', '8171', 'n', '749', '7127', 'Z', 'd', 'C', 8731, 'p', 'H', 'l', 'T', 'e', 'I', 'C', 'w'], ['p', 'B', 4901, 7891, 'd', 'H', '8179', '5605', 'c', 'D', '3723', 'g', 'N', '8295', 's', '7815', '8937', '9309', '6129', '7979', '6329', '141', 'u', '8693', 't', '8409', '8171', 'n', '749', '7127', 'Z', 'u', 7639, 'V', 'O', 2175, 9499, 8623, 3081, 'p', 3741]