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

[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']
a, b, 3333, 6041, 2765, q, 9485, 7697, E, 509, Q, 1573, 4879, 1197, 4515, k, c

['R', 'Q', 'Q', 'e', 'C', 'U', 'T', '7509', '8471', 'S', 407, 793], ['G', 'D', 'C', 'U', 'T', '7509', '8471', 'l', 'r', 7861, 6959, 1617]
C, U, T, 7509, 8471

['Z', 1843, 'u', 863, 'y', 'H', '6811', '9025', '1173', 'x', 't'], [5715, 3439, 1025, 10007, 'y', 'H', '6811', '9025', '1173', 'v', 2945, 'V', 'g']

y, H, 6811, 9025, 1173