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

['e', 167, 4283, 'l', 247, 4197, 3397, 'Z', 'F', 2835, 4273, 'F', '4769', '6831', '5497', 'Z', 'g', 'Y', '2003', '2851', '9303', '6173', 'P', 'U', 'G', 'X', 7049, 'q'], ['z', 'p', 'L', 'A', 'o', 391, 'F', '4769', '6831', '5497', 'Z', 'g', 'Y', '2003', '2851', '9303', '6173', 'I', 8741, 3159, 't']
F, 4769, 6831, 5497, Z, g, Y, 2003, 2851, 9303, 6173

[5363, 'h', 3845, 6217, 2315, 'm', 'O', 5573, 4601, 7145, 9561, 'q', 'r', 'T', '619', 'r', '8913', '7507', '4527', '9313', '7813', '4297', '9581', '561', 'L', 'F', '9357', '5175', '1853', 'K', 'a', '8575', 'V', '8283', 'J', '5341', 'Y', 9545, 6705, 6445, 'X', 7149, 'B', 9079, 'P', 9337, 3641, 3731, 4837, 't'], [4089, 'f', 'A', 'q', 477, '619', 'r', '8913', '7507', '4527', '9313', '7813', '4297', '9581', '561', 'L', 'F', '9357', '5175', '1853', 'K', 'a', '8575', 'V', '8283', 'J', '5341', 'q', 't', 'g', 'T', 8621, 'Z', 'L', 'd', 9207, 5705, 'Z', 'l', 'I', 'Z', 1141, 9949, 867, 'H', 'E', 3605, 3617, 331]
619, r, 8913, 7507, 4527, 9313, 7813, 4297, 9581, 561, L, F, 9357, 5175, 1853, K, a, 8575, V, 8283, J, 5341

[3641, 'E', 't', '7807', 'U', 'r', 'i', 593, 6563], ['M', 1231, 't', '7807', 'U', 'r', 'u', 'n', 4231]

t, 7807, U, r