In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['y', 'u', 'Z', 'C', 'i', 'm', 'y', 'E', 'L', 2481, 4133, 'Y', 'w', 1065, 'M', 'Y', 8343, 3001, 'S', 8723, 'k', '2957', 'u', '9131', 'm', '6241', '1015', 'V', '6123', '1119', '2657', '3091', '1125', '3039', 'a', 'f', 'G', '1407', 'c', 'Y', 'R', '743', '2503', '189', '1323', '3935', 'a', 'W'], ['A', 'q', 'A', 3505, 3767, 'V', 'E', 'H', 5667, 't', 5245, 'i', 1859, 'D', 'l', 5063, 6313, 'z', 7099, 'k', '2957', 'u', '9131', 'm', '6241', '1015', 'V', '6123', '1119', '2657', '3091', '1125', '3039', 'a', 'f', 'G', '1407', 'c', 'Y', 'R', '743', '2503', '189', '1323', '3935', 'O', 3797, 'k', 1845, 8543, 'd', 'T', 'U', 6445]