instruction:
In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
question:
[1699, 5363, 'U', 3351, 'K', 1771, 8981, 'y', 4317, 'P', 'H', 'f', 'j', '7169', '129', 'Z', 'K', 'r', 'o', 'v', '1713', 'g', 'A', 'h', 'e', '421', 'a', 'b'], [1477, 'o', 'h', 4413, 'Y', 'V', 4539, 't', 'S', 3527, 9183, 9541, '7169', '129', 'Z', 'K', 'r', 'o', 'v', '1713', 'g', 'A', 'h', 'e', '421', 'j', 'V', 8579, 3395, 'l', 'X', 'l', 'm', 4239]
answer:
7169, 129, Z, K, r, o, v, 1713, g, A, h, e, 421

question:
['G', 5429, 'G', 'h', 'i', 4385, 'l', 'w', '4889', 'j', 'i', 'P', '1977', '9281', 'N', 's', 'y', '3049', 'E', 'w', 'l', 6255, 9841, 7339], [5463, 'Y', 1105, 'Z', 6887, 'G', 9653, 'v', 6241, 1865, '4889', 'j', 'i', 'P', '1977', '9281', 'N', 's', 'y', '3049', 'E', 'w', 't', 7945, 'T', 'l', 6697, 'k', 'J', 57]
answer:
4889, j, i, P, 1977, 9281, N, s, y, 3049, E, w

question:
['e', 'o', 'x', '4103', 'n', '9', 'J', 't'], ['t', 'h', 'x', '4103', 'n', '9', 'x', 't']
answer:
x, 4103, n, 9