In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['z', 'V', 'a', 149, 7291, 2821, 'f', 'A', '9039', 'l', 'e', '4241', 'X', 'd', 'Q', 'Q', 'b', 'Z', '85', '6331', 'F', 'f', 1209, 'e'], ['M', 8907, 3895, 'F', 'f', 7145, 3899, 'A', '9039', 'l', 'e', '4241', 'X', 'd', 'Q', 'Q', 'b', 'Z', '85', '6331', 'F', 'z', 3213, 'Q', 't', 797, 'P', 'n', 'P', 'd', 1971, 7847, 'e', 'K']