In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Q', 'c', 'w', 'U', 'E', 'h', 'e', 7985, 2071, 'f', 'e', 'c', 'q', '8101', '1437', 'H', 'K', '5223', 'I', 's', 'a', '7381', '1947', 'K', 'v', 's', '2375', '425', '1267', 'm', 'u', '8595', '4623', 'q', 'x', 2535, 7523, 3233], [355, 't', 5353, 6491, 's', 'n', 'C', 207, 1777, 7009, 'z', 8933, 'r', 1255, 3639, 8317, 'Y', 'f', 'f', 'e', 'c', 'q', '8101', '1437', 'H', 'K', '5223', 'I', 's', 'a', '7381', '1947', 'K', 'v', 's', '2375', '425', '1267', 'm', 'u', '8595', '4623', 'q', 't', 3549, 's', 'F', 'y', 4973, 'B', 's', 'w', 6745, 569, 'W', 653, 3755, 'I', 4585]