In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
Q: ['V', 9655, 9833, 3611, 'e', 'l', 'B', '7405', '5515', '9451', 'x', 'e', '2975', '4501', '4317', '5443', '8663', 'k', 'R', 'U', 'Q', 'j', '9471', '8557', 'H', 'r', 'Q', 'R', 'I', 'd', '5821', 'O', 6473, 'h', 8417, 2237, 6905, 1875, 8077, 'w', 'P', 6181, 3883, 6205, 's', 929, 69, 'i'], [4317, 2809, 3787, 'J', '7405', '5515', '9451', 'x', 'e', '2975', '4501', '4317', '5443', '8663', 'k', 'R', 'U', 'Q', 'j', '9471', '8557', 'H', 'r', 'Q', 'R', 'I', 'd', '5821', 'g', 7365]
A: 
7405, 5515, 9451, x, e, 2975, 4501, 4317, 5443, 8663, k, R, U, Q, j, 9471, 8557, H, r, Q, R, I, d, 5821