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

Ex Input:
['q', 6247, 7691, 'M', 'i', 3857, 'J', '249', 'j', '3315', 'Y', 'q', 'K', 'B', 'h', 'M', 'i', '3947', '8559', '1833', 'q', 'x', '1469', '7579', '421', 'F', 'y', 'c', '9043', 'r', 'N', 'O', 'N', 'Z', 'a', 8713, 'a', 2717, 'y', 'l', 't', 1815, 9507, 1713, 'N'], ['Z', 7463, 6215, 'r', 43, 'h', 3841, 9317, 'J', 'x', 6735, 'b', '249', 'j', '3315', 'Y', 'q', 'K', 'B', 'h', 'M', 'i', '3947', '8559', '1833', 'q', 'x', '1469', '7579', '421', 'F', 'y', 'c', '9043', 'r', 'N', 'O', 'N', 'Z', 'Q', 'c', 'B', 9989, 'd', 875, 1185, 7121, 5559, 'k', 2289]

Ex Output:
249, j, 3315, Y, q, K, B, h, M, i, 3947, 8559, 1833, q, x, 1469, 7579, 421, F, y, c, 9043, r, N, O, N, Z


Ex Input:
[7491, 'w', 'F', 2929, '6969', '2729', '4371', '6153', 'a', 'r', 'y', 'h', 'y', 'g', 'C', '1381', '5801', '8697', '4093', 'X', 'n', 821, 1983, 'S', 6305, 'O', 6533, 'q', 901, 'U', 2911], [3143, 1605, 4373, 'T', 7055, '6969', '2729', '4371', '6153', 'a', 'r', 'y', 'h', 'y', 'g', 'C', '1381', '5801', '8697', '4093', 'r', 'Z', 943, 861, 8883, 'b', 'n', 3409, 8943, 'M']

Ex Output:
6969, 2729, 4371, 6153, a, r, y, h, y, g, C, 1381, 5801, 8697, 4093


Ex Input:
['n', 1573, '5707', 'S', 'U', 'f'], ['l', 'R', '5707', 'S', 'D', 2939]

Ex Output:

5707, S