In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[3913, 'W', 3559, 'q', 'i', 'F', '1995', '1903', '7997', '8897', 'z', '2881', '5509', '6361', 'g', 'l', 'D', '9291', 'R', '7165', 'Z', 'g', 4729, 6893, 1397, 'C', 'i', 'D', 5187, 'v', 'y'], [6301, 'H', 'r', 'F', '1995', '1903', '7997', '8897', 'z', '2881', '5509', '6361', 'g', 'l', 'D', '9291', 'R', '7165', 'F', 'g', 'N', 'G', 7671, 2419, 'u', 3433, 3735, 'e', 'F', 9441, 8437, 107, 'q']