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

Ex Input:
[4163, 'p', 'Z', 'i', 'r', 9525, 'c', 'C', 'L', 'J', 'L', '3441', 'W', '2257', '7885', '873', 'e', 'a', 'N', '2853', 'K', 'R', '5531', 'h', 'p', 'u', 'b', '6003', 'q', 'H', '6641', '9991', 'w', 6457, 'P', 1517, 6975, 2465, 'Y', 425, 'n', 375, 'O', 7707, 1105, 1985, 6149, 'l', 5761, 875, 4411], [2127, 9083, 'w', 'Z', 4071, 5347, 'r', 'J', 'L', '3441', 'W', '2257', '7885', '873', 'e', 'a', 'N', '2853', 'K', 'R', '5531', 'h', 'p', 'u', 'b', '6003', 'q', 'H', '6641', '9991', 'o', 'K', 1639, 'Z', 13, 'm', 'M', 'G', 'C', 353]

Ex Output:
J, L, 3441, W, 2257, 7885, 873, e, a, N, 2853, K, R, 5531, h, p, u, b, 6003, q, H, 6641, 9991


Ex Input:
['d', 897, 't', 1807, 'k', 'P', '5013', '1811', '9411', 'U', 'z', '2793', '3221', '5643', 'j', '1793', '9507', 'J', '6147', 'i', '4383', '723', 'z', 'c'], [2741, 'D', 5443, 'Z', 'k', 129, 3339, 'k', 'T', 'P', '5013', '1811', '9411', 'U', 'z', '2793', '3221', '5643', 'j', '1793', '9507', 'J', '6147', 'i', '4383', '723', 'd', 4353]

Ex Output:
P, 5013, 1811, 9411, U, z, 2793, 3221, 5643, j, 1793, 9507, J, 6147, i, 4383, 723


Ex Input:
['C', 8581, 'z', 9459, 'p', 'H', 'q', '1533', '1867', '1969', 'e', 'x', '1457', 'W', '6747', '8933', '2527', 'D', 2151, 3559], ['j', 4947, 4223, 7863, 'M', 'w', 5201, 'S', '1533', '1867', '1969', 'e', 'x', '1457', 'W', '6747', '8933', '2527', 'I', 'E', 'W']

Ex Output:

1533, 1867, 1969, e, x, 1457, W, 6747, 8933, 2527