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

Ex Input:
[5179, 's', 7203, 4301, 3441, 'k', 'P', 't', 'r', 3027, 's', 3809, 'u', 'S', 'h', 5087, 'z', 'a', 'b', '3333', '6041', '2765', 'q', '9485', '7697', 'E', '509', 'Q', '1573', '4879', '1197', '4515', 'k', 'c', 'z', 'V', 'l', 521, 9401, 3845, 6245, 3437, 'w', 'u'], ['u', 4399, 'R', 'v', 'x', 1061, 7505, 'r', 8411, 'o', 9285, 477, 3823, 'O', 'B', 2731, 5879, 'a', 'b', '3333', '6041', '2765', 'q', '9485', '7697', 'E', '509', 'Q', '1573', '4879', '1197', '4515', 'k', 'c', 'G', 9613, 8995, 3881, 'i', 'G', 't', 2473, 1297, 7481, 'v', 'a', 7607, 1147, 3263, 'p']

Ex Output:
a, b, 3333, 6041, 2765, q, 9485, 7697, E, 509, Q, 1573, 4879, 1197, 4515, k, c


Ex Input:
[9417, 6541, 'V', 4095, 2535, 8271, 4253, 'r', 7251, 'F', 's', '5673', 'Q', '163', '591', 'G', 'm', 't', '7069', 'c', 'o', 't', 'q', '5595', 'D', 'Y', 'm', 3611, 'K', 7553, 'B', 'K', 'T'], ['P', 'r', 6361, 2773, 'r', 2627, 'F', 's', '5673', 'Q', '163', '591', 'G', 'm', 't', '7069', 'c', 'o', 't', 'q', '5595', 'D', 'f', 7923, 3733, 5271, 4083]

Ex Output:
F, s, 5673, Q, 163, 591, G, m, t, 7069, c, o, t, q, 5595, D


Ex Input:
[7627, 2525, '6217', 'g', 'j', '8203', 't', '2919', '7655', 's', '4769', 'n', 'b', 7779, 2405, 'e', 'y', 'S', 7205, 'E'], ['j', 'U', 'b', 2757, 'X', 5365, 'v', 'p', 307, '6217', 'g', 'j', '8203', 't', '2919', '7655', 's', '4769', 'n', 'L', 3979, 659, 6971, 5737, 1189, 5917, 'D', 'i', 'F']

Ex Output:

6217, g, j, 8203, t, 2919, 7655, s, 4769, n