In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['C', 'I', 3709, 'O', 1595, 'I', 3023, 'Q', 7187, 'J', 'G', 1179, 'W', 8555, 9059, 'D', 3611, 'K', 'l', '4219', '7715', '3871', 'H', '4973', 't', '3199', '4933', '985', 'h', '8665', 'd', '1831', 'f', '6949', 'z', '5015', '6013', 'w', 'V', 6389, 6975, 'e', 'H', 'b', 681], [3875, 'P', 3553, 'b', 1255, 2075, 4787, 'C', 5471, 3905, 'K', 'l', '4219', '7715', '3871', 'H', '4973', 't', '3199', '4933', '985', 'h', '8665', 'd', '1831', 'f', '6949', 'z', '5015', '6013', 'Y', 6153, 8471, 'D', 9035, 'E', 'M', 'v', 'x', 'G', 9191, 'h', 'k', 'V', 'e', 3927, 7333]