In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[815, 'i', 10001, 'r', 'd', 4361, 7335, 't', 'A', 9717, 3357, 9321, 5955, 'W', 'T', 'n', 'n', '5581', '7723', 'D', '6543', '6111', 'r', 'C', 'V', 'z', '9307', 'Z', 'D', '9109', '7057', '207', '4257', 'D', '6757', 'A', 7881, 'z', 9787, 'S', 5219, 5127, 9967, 'F', 'e'], [7283, 'D', 'h', 'q', 'a', 643, 7301, 9385, 8613, 4261, 's', 5893, 7943, 'k', '5581', '7723', 'D', '6543', '6111', 'r', 'C', 'V', 'z', '9307', 'Z', 'D', '9109', '7057', '207', '4257', 'D', '6757', 'K', 8647, 'O', 5501, 'N', 'T', 'r', 1415, 1305, 3015, 'j', 1143, 'J', 'H', 'B', 'H']