TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['i', 2153, 8879, 'Q', 9403, 6667, 'E', 1829, 'b', 'j', 1907, 9167, 3331, 'T', 't', 6039, 'i', 'z', 4097, '1959', 'U', 'q', '8789', 'z', '6135', 'K', '147', '6933', '3647', '9265', '10015', '4259', '7919', '2077', '3797', '631', '7453', 'e', '7297', '4417', '2479', 'H', 'B', 'Y', 'q', 2151, 129, 'd', 'I', 'N', 5573, 'S', 'x', 5201, 'J', 2507, 'Y', 4951, 'b', 8655, 7611, 5419, 3559], ['K', 6565, 'L', 'E', 4757, 'x', 'W', 't', 'X', 's', 2289, 2227, 'm', 's', 661, 8723, 'P', 'U', 'S', 7791, '1959', 'U', 'q', '8789', 'z', '6135', 'K', '147', '6933', '3647', '9265', '10015', '4259', '7919', '2077', '3797', '631', '7453', 'e', '7297', '4417', '2479', 'K', 4161, 'e', 'z', 't', 8701, 5515, 8391, 'C', 9017, 3623, 3777, 'z', 'O', 'w', 7551, 4971, 'U']

SOLUTION: 1959, U, q, 8789, z, 6135, K, 147, 6933, 3647, 9265, 10015, 4259, 7919, 2077, 3797, 631, 7453, e, 7297, 4417, 2479

PROBLEM: ['R', 'k', 'g', 4045, 'W', '4923', '9161', '4031', '7443', 'f', 'U', 2683, 'Y'], [943, 'v', '4923', '9161', '4031', '7443', 'f', 't', 'm', 9213]

SOLUTION: 4923, 9161, 4031, 7443, f

PROBLEM: [95, 6287, 5495, '2161', 'h', '389', '7863', 'Y', '2267', 'h', '1277', '5203', 'g', 'L', 'o', 3137, 'q'], ['W', 'e', '2161', 'h', '389', '7863', 'Y', '2267', 'h', '1277', '5203', 'q', 6501, 2851, 'n']

SOLUTION:
2161, h, 389, 7863, Y, 2267, h, 1277, 5203