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

['w', 3897, 'U', 'a', '455', '6499', '8975', '9003', 'O', 'j', 'T', 'P', 'C', 'z', 5141, 1751, 6731, 'r'], ['B', 8071, 703, 'G', 885, 'Z', 2391, 1749, 4177, 'U', 'a', '455', '6499', '8975', '9003', 'O', 'j', 'T', 'D', 8751, 'y', 2941]
U, a, 455, 6499, 8975, 9003, O, j, T

['G', 'E', 'A', 'u', 'x', 'W', 'o', 'e', 'i', 'B', 3441, 'S', 8211, 'E', '5913', '4807', '8365', 'v', '5383', 'V', 'M', 'i', 'I', 'J', '1475', '3385', 'r', '9983', 'U', 'i', 'a', 9789, 4073, 'J', 'C', 8849, 6749, 'G', 5237, 9697, 1425, 'J', 5755], ['W', 'S', 'V', 'r', 'd', 'v', 7267, 7665, 'c', 3763, 'Z', 7427, 4575, 'D', 'q', 'U', '5913', '4807', '8365', 'v', '5383', 'V', 'M', 'i', 'I', 'J', '1475', '3385', 'r', '9983', 'U', 'i', 'z', 4797]
5913, 4807, 8365, v, 5383, V, M, i, I, J, 1475, 3385, r, 9983, U, i

['W', 771, 's', 'z', 9485, '7819', 'k', 'P', 'j', 'r', 'h', 'K', '929', 'l', '4059', 'm', '3073', '4087', '3249', 'j', 'Z', 8463, 'J', 9631, 6961], [6489, 6975, 8275, 'k', 'y', 'u', 'f', 2437, 'v', 'Y', '7819', 'k', 'P', 'j', 'r', 'h', 'K', '929', 'l', '4059', 'm', '3073', '4087', '3249', 'b', 'w', 25, 7539]

7819, k, P, j, r, h, K, 929, l, 4059, m, 3073, 4087, 3249