In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['D', 'B', 'd', 'p', 'b', 'C', 'I', 1199, 1921, 'I', 'i', 5755, 'R', 9791, 'V', 2379, 'l', 'f', 8965, 't', 'j', 3739, 5745, 8147, 'y', 'j', 'r', 'J', 'E', '4531', '3821', '1925', 'P', '5171', 'D', '6029', 'w', '7085', '5019', '797', 'P', '7339', 'l', '7553', 'F', '4169', '4353', '8863', 'a', 'P', 'F', 9033, 6601, 9177, 4251, 'h', 'z'], [7403, 5105, 'o', 'J', 'E', 'G', 'C', 8799, 'G', 455, 'i', 'Y', 599, 'j', 'r', 'J', 'E', '4531', '3821', '1925', 'P', '5171', 'D', '6029', 'w', '7085', '5019', '797', 'P', '7339', 'l', '7553', 'F', '4169', '4353', '8863', 'a', 'P', 'k', 'u', 't', 407, 'F', 'k', 6429]