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

Ex Input:
['D', 5293, 8083, 'l', 'h', 'z', 'z', 8523, 'X', 3949, 8901, 'h', 'g', 8369, 2775, 'i', 's', 'O', 'd', 'h', '5371', 'v', '3935', '7421', 'd', 'Z', 'B', '8599', '4191', '9961', 'Z', 'o', 'C', 'a', 'O', 'b', '7945', 'L', 'e', 'a', 'w', 't', 6573, 's', 2249], [5797, 'n', 'H', 1123, 'i', 's', 'O', 'd', 'h', '5371', 'v', '3935', '7421', 'd', 'Z', 'B', '8599', '4191', '9961', 'Z', 'o', 'C', 'a', 'O', 'b', '7945', 'p', 'E', 'P', 'R', 'Z', 'G', 5959, 1975, 9121, 'G', 'q', 'i', 3739, 'e', 'y', 'T', 1215, 'r', 9759, 6597]

Ex Output:
i, s, O, d, h, 5371, v, 3935, 7421, d, Z, B, 8599, 4191, 9961, Z, o, C, a, O, b, 7945


Ex Input:
['H', 9227, 9923, 7577, 8169, 'k', 'B', 'L', 6329, '4183', '5427', '255', 'Y', 'C', 'g', 'I', 'J', '6847', 'D', '2735', 'X', 'Y', 'M', 7749, 'm', 4159, 'C', 3319, 9363, 2283, 'm', 4571, 'e'], ['u', 'Z', 'r', 1503, 'G', 9799, 'z', 'F', 'b', 'N', '4183', '5427', '255', 'Y', 'C', 'g', 'I', 'J', '6847', 'D', '2735', 'X', 'J', 7431, 3855, 4535, 6657, 8809, 7885, 'U', 1753, 3423]

Ex Output:
4183, 5427, 255, Y, C, g, I, J, 6847, D, 2735, X


Ex Input:
[6695, 6281, 2867, 'v', 'U', '4969', 'u', 'D', 'q', 177, 3889, 'H'], ['C', 2121, 4185, 3481, 'E', 'v', 'U', '4969', 'u', 'D', 'd', 3657, 'u', 'X']

Ex Output:

v, U, 4969, u, D