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

Ex Input:
[6403, 3483, 'Z', 'l', '1385', '5787', '7377', '9385', '1545', '1079', 'C', 'K', 'f', 'O', 'W', '3253', 'Y', '2727', '3679', 'C', '4251', '3803', 'y', 'p', 'H', 'U', 9679, 'k', 'K', 3073, 3011, 'u', 'p', 'N', 2433, 9787, 3981, 363], ['n', 'n', 2201, 4585, 'Z', 'q', 921, 'S', 5417, 'l', '1385', '5787', '7377', '9385', '1545', '1079', 'C', 'K', 'f', 'O', 'W', '3253', 'Y', '2727', '3679', 'C', '4251', '3803', 'y', 'p', 'H', 'u', 'P', 4041, 6681, 'n', 'M', 8035]

Ex Output:
l, 1385, 5787, 7377, 9385, 1545, 1079, C, K, f, O, W, 3253, Y, 2727, 3679, C, 4251, 3803, y, p, H


Ex Input:
[8235, 6785, 'P', 'N', 'y', '5503', '6065', '2039', 'Q', 'o', 'F', 7791, 'R', 'm', 3633], ['s', 863, 'z', 'y', '5503', '6065', '2039', 'Q', 'o', 'o', 6907, 5837, 's', 2553]

Ex Output:
y, 5503, 6065, 2039, Q, o


Ex Input:
['a', 'b', 5499, 'f', 'v', 't', '9697', 'g', '1073', '1019', 'K', 't', 1057, 6119, 3225, 7031, 'Q', 'v'], [4905, 'W', 'a', 5965, 'w', 2389, 'H', 'g', 'f', 'v', 't', '9697', 'g', '1073', '1019', 'K', 'n', 'k', 'v', 4631, 8937, 1269]

Ex Output:

f, v, t, 9697, g, 1073, 1019, K