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

[2481, 7755, 2663, 2449, 4291, 'b', 5343, 'F', 'A', '3811', 'G', 'I', '415', '6825', '2449', 'q', 'W', 'x', 't', 'K', 'l', 539, 3959], ['W', 'N', 'K', 4351, '3811', 'G', 'I', '415', '6825', '2449', 'q', 'W', 'x', 'c', 9833]
3811, G, I, 415, 6825, 2449, q, W, x

['x', 653, 8793, 'W', 1845, 'Y', 6363, 9757, '9605', 'U', '1913', '2991', '7131', '237', '7023', 'j', '2123', 'B', '1887', 'K', '3729', 'D', '8391', '9729', 'w', 'k', 'M', '6957', 'J', 703, 'F', 'X', 'x', 7483], ['q', 10017, 5483, 8675, 'w', 'F', 'D', '9605', 'U', '1913', '2991', '7131', '237', '7023', 'j', '2123', 'B', '1887', 'K', '3729', 'D', '8391', '9729', 'w', 'k', 'M', '6957', 'n', 7147, 7131, 'q', 'u', 'A', 1171, 'V', 'k', 'N', 6869]
9605, U, 1913, 2991, 7131, 237, 7023, j, 2123, B, 1887, K, 3729, D, 8391, 9729, w, k, M, 6957

[835, 1423, 325, 'w', 'D', 1313, 4549, 9397, 't', 'c', 'J', 'z', 'G', 357, 'k', 6857, 345, 'R', 'T', '4241', '7087', '8937', '7849', 't', '9735', '4417', '2081', '8025', 'c', '2535', 'd', '9227', '7411', 'm', '6185', 'M', 'x', 'I', 'T', '7183', 'K', '4509', 'X', 'y', 7037, 4781, 'g', 'K', 1223, 5169, 167, 'b'], ['b', 'W', 'K', 'X', 'k', 4535, 6249, 5453, 'X', 'q', 'k', 1511, 'K', 'j', 'A', 1945, 'F', 3107, 6125, 'M', 5647, 'R', 'T', '4241', '7087', '8937', '7849', 't', '9735', '4417', '2081', '8025', 'c', '2535', 'd', '9227', '7411', 'm', '6185', 'M', 'x', 'I', 'T', '7183', 'K', '4509', 'X', 'X', 'W']

R, T, 4241, 7087, 8937, 7849, t, 9735, 4417, 2081, 8025, c, 2535, d, 9227, 7411, m, 6185, M, x, I, T, 7183, K, 4509, X