In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[6825, 2009, 2899, 6163, 7085, 'Y', 4861, 'l', 'T', 7317, 8649, 'C', 'f', 'e', 1873, 'c', 7097, 9597, 'u', 'S', 9781, 'K', 2895, 'e', '4195', 'W', 'A', '2523', 'c', 'v', 'b', 'g', '4341', 'E', '8437', 'g', '9945', '9655', 'x', '3747', '7107', '4277', 'H', 'K', 'E', '1339', 'W', 'a', 2331, 'e', 'C', 3569, 1575, 'a', 'Q', 'v', 'q', 633, 'G', 'z'], ['f', 4285, 7069, 't', 'p', 3907, 7301, 'w', 4073, 'L', 'C', 'j', 't', 'f', 'e', '4195', 'W', 'A', '2523', 'c', 'v', 'b', 'g', '4341', 'E', '8437', 'g', '9945', '9655', 'x', '3747', '7107', '4277', 'H', 'K', 'E', '1339', 'W', 'W', 'Y', 'U', 8227, 'D', 'N', 'j', 4821, 2047, 7919, 9341, 2357, 'q', 'f', 3691, 917, 949, 763, 6115, 4381, 4979, 8417, 2463]