In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['c', 4713, 10001, 8545, 807, 'E', 'T', 'r', 'N', 'R', 'y', 'P', 'x', '4051', '59', 'K', '219', 'J', '639', '8673', 'Q', 'f', 'L', 'f', 'n', 's', 7049, 7047, 't'], ['R', 'T', 'r', 'D', 'k', 1415, 6595, 9905, 'A', 5593, 3371, 'K', 'm', 'T', 'r', 'N', 'R', 'y', 'P', 'x', '4051', '59', 'K', '219', 'J', '639', '8673', 'r', 'b', 1393, 5097, 'N', 1541, 'Z', 2109]