In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['b', 'J', 'j', 'u', 189, 'C', 1257, 'j', 'T', '6503', 'O', '5919', '6055', 'b', '1709', '3177', 'b', 't', 'f', '1651', '1273', '1007', '3225', 'E', 'S', 'O', 'J', 'C', 2095, 3963, 'w'], [8009, 8197, 'g', 'j', 'T', '6503', 'O', '5919', '6055', 'b', '1709', '3177', 'b', 't', 'f', '1651', '1273', '1007', '3225', 'E', 'S', 'O', 'J', 'p', 'Y', 'c', 295, 5273, 9979, 'R', 'y']