In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[9769, 'q', 4293, 'd', 'N', 't', 'z', 1859, 3185, 'H', 'X', 'c', 'P', 'Z', '855', 'P', 'Z', 'd', 'C', '6621', '9561', 'K', 'c', 'P', 'z', '1511', 'M', '1973', '1143', '9635', '4285', '3645', 'x', '4199', 'm', '8431', '5119', 't', 'v', 'F', 'q', 'S', 'h', 'k'], [7201, 229, 'L', 4271, 'j', 5145, 'B', 'S', 'p', 4459, 'X', 3393, 'w', 8703, 125, 'D', 'C', 'P', 'Z', '855', 'P', 'Z', 'd', 'C', '6621', '9561', 'K', 'c', 'P', 'z', '1511', 'M', '1973', '1143', '9635', '4285', '3645', 'x', '4199', 'm', '8431', '5119', 't', 'x', 3547, 1313, 'L', 941, 'P', 'o', 2681, 2097, 'I', 'Z', 'C', 4071, 'X', 7073, 'p', 4211, 1331, 683, 8231, 6415, 'V']