In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

['y', 'w', 'j', '5137', 'l', 'G', '2001', '2517', 'T', '5131', '6431', 'g', 'O', 'O', 's', '6915', 'F', 8931], [2269, 'M', 'q', 'P', 'l', 3413, 'O', 317, 1555, 1893, 'j', '5137', 'l', 'G', '2001', '2517', 'T', '5131', '6431', 'g', 'O', 'O', 's', '6915', 'x', 8779]
j, 5137, l, G, 2001, 2517, T, 5131, 6431, g, O, O, s, 6915