In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['a', 7153, 9309, 'y', 7189, 133, 1047, 'O', 'A', 'X', 'k', 'w', 'I', '4371', '7969', 'm', '2811', '7799', 's', '6439', 'j', '659', '1681', '8743', 'e', 'v', '8819', 'l', '9201', 'K', '7173', 'p', '9855', 'B', 'j', 8813, 'F', 9675, 'f', 2449, 3647, 861, 'N', 6141, 3623, 5277, 'L', 2429, 'P', 1813, 9607, 3813, 8057, 1781], ['j', 's', 57, 'I', 'Y', 9231, 'R', 'i', 'X', 'k', 'w', 'I', '4371', '7969', 'm', '2811', '7799', 's', '6439', 'j', '659', '1681', '8743', 'e', 'v', '8819', 'l', '9201', 'K', '7173', 'p', '9855', 'o', 8575, 'l', 4813, 7725, 4927, 'n', 3023, 'g', 5473, 1551, 8913, 'B', 3205, 'M', 3181, 'Q', 7737, 6915, 5507, 'B', 'Z']