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

['d', 2317, 'y', 8487, 'r', 4789, 5525, '3961', '1747', 'v', '7423', '847', 'a', '4969', 'T', 'L', '5383', 'W', 'U', 5749, 9533, 'T', 'Z', 'x'], [1401, 'F', 9303, 'w', 4629, 9053, 'k', 7351, 1261, '3961', '1747', 'v', '7423', '847', 'a', '4969', 'T', 'L', '5383', 'o', 'q']
3961, 1747, v, 7423, 847, a, 4969, T, L, 5383

[2087, 'D', 815, 'a', 6837, 'U', 1683, 9549, 'Q', 4313, 2991, 8685, 'Q', 1253, 'O', 9367, 4835, 5191, 'L', 'e', '9385', '2631', '5849', '2469', 'S', 'Y', '967', '2589', '9057', '9315', '9591', '5801', 'B', '5991', 'g', '7317', '4923', 'L', 'B', 'N', '8863', 'v', 'q', '2887', 'f', '9939', 'd', 'i', 'a', 'S', 7967, 'N', 'r'], [8841, 'y', 'F', 1845, 'X', 's', 8663, 'B', 'h', 5885, 'p', 5555, 3051, 2359, 'q', 'm', 2675, 53, 'U', 7017, 8161, 4755, 'B', 5367, 8577, 'H', 4223, 'e', '9385', '2631', '5849', '2469', 'S', 'Y', '967', '2589', '9057', '9315', '9591', '5801', 'B', '5991', 'g', '7317', '4923', 'L', 'B', 'N', '8863', 'v', 'q', '2887', 'f', '9939', 'd', 'Z', 'R', 'X', 'j', 'T', 'N', 'V', 2931, 'X', 'g', 'P', 2979, 'o', 'B', 8283, 'r', 'D', 1051, 'E']
e, 9385, 2631, 5849, 2469, S, Y, 967, 2589, 9057, 9315, 9591, 5801, B, 5991, g, 7317, 4923, L, B, N, 8863, v, q, 2887, f, 9939, d

[4007, 821, '7049', '1621', '4549', 'r', 'S', 8693], [1501, 7679, 'e', '7049', '1621', '4549', 'd', 'p', 7827]

7049, 1621, 4549