In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['q', 'O', 7981, 'U', 'V', 's', 't', 6911, 'i', 'K', 'O', 'F', 1359, 3839, 'g', '2555', 'H', '9877', 'Y', '3433', '5661', '2061', 'j', 'j', '2413', '3795', 'c', '6529', 'F', '1099', 'f', 'U', 'b'], ['V', 'D', '2555', 'H', '9877', 'Y', '3433', '5661', '2061', 'j', 'j', '2413', '3795', 'c', '6529', 'F', '1099', 'U', 'm', 8601, 881, 1009, 1759, 5669, 8581, 'm', 8715, 8913]