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

Ex Input:
[9273, 'C', 'u', 6963, 'W', 7827, 3953, 'p', 6281, 7421, 'j', 'Y', 'P', 253, 5393, 'k', 9437, 'f', 6067, 'l', 6167, 'j', 'o', 'y', 'R', '5165', 'K', '6947', '2583', '3721', 'u', 'b', 'e', 'G', 'B', '3777', '623', '8995', '7339', 'b', '8633', '6783', 'l', 'q', '9637', '2791', '6545', 'W', 'G', 'a', 'v', 'h', 3895, 'C', 719, 1945, 'S'], ['G', 4797, 'z', 9055, 'c', 't', 7175, 1231, 'I', 'X', 1415, 'n', 7801, 'K', 7581, 'X', 3735, 'a', 'R', '5165', 'K', '6947', '2583', '3721', 'u', 'b', 'e', 'G', 'B', '3777', '623', '8995', '7339', 'b', '8633', '6783', 'l', 'q', '9637', '2791', '6545', 'W', 'G', 'a', 'C', 'E', 'p', 'e', 'O', 'O', 9127, 'c', 6151, 5929, 'v', 'Z', 6375, 'F', 6255, 6803, 'Y', 'Z', 6865, 5889, 1719, 305, 5127, 'g', 'x', 8743]

Ex Output:
R, 5165, K, 6947, 2583, 3721, u, b, e, G, B, 3777, 623, 8995, 7339, b, 8633, 6783, l, q, 9637, 2791, 6545, W, G, a


Ex Input:
[5225, 'L', 1023, 8623, 'k', 'f', '1481', 'e', 'm', '4013', 'l', '831', 'n', '3137', 'b', 517], [1243, 't', '1481', 'e', 'm', '4013', 'l', '831', 'n', '3137', 'x', 5545, 's', 'a']

Ex Output:
1481, e, m, 4013, l, 831, n, 3137


Ex Input:
[8061, 'K', 3127, '2547', 'Z', 'L', 'b', '6137', 'L', '4287', 'N', 'Q', '1391', 'U', 'V', '3473', 'r', '3729', '691', 'e', 2145], ['r', 9921, 5539, 8871, '2547', 'Z', 'L', 'b', '6137', 'L', '4287', 'N', 'Q', '1391', 'U', 'V', '3473', 'r', '3729', '691', 'Y', 7363, 2743, 'P', 'O', 'y', 'B', 1427]

Ex Output:

2547, Z, L, b, 6137, L, 4287, N, Q, 1391, U, V, 3473, r, 3729, 691