In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['M', 8389, '2415', 'E', '6021', 'l', 'q', 'P', 'h', '5597', 'j', 'f', '9783', 'b', 5051, 7443, 2455, 'h', 'G', 3753, 901], [129, 'd', 8795, 4333, 107, 'i', 7441, 6735, 8337, 'x', '2415', 'E', '6021', 'l', 'q', 'P', 'h', '5597', 'j', 'f', '9783', 't', 'K', 'Z', 'h']