TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['o', 833, 'H', 'I', 'x', 'u', 'a', 'L', 'H', 'g', '4519', 'J', 'E'], [9993, 'z', 'g', 'u', 'a', 'L', 'H', 'g', '4519', 'V', 9115]

SOLUTION: u, a, L, H, g, 4519

PROBLEM: [953, 'l', '1329', '527', '6257', 'v', '5461', 'F', 't', 3373, 'r'], ['v', 'P', '1329', '527', '6257', 'v', '5461', 'h', 5517, 'Z', 'y', 5061]

SOLUTION: 1329, 527, 6257, v, 5461

PROBLEM: ['o', 'h', 'e', 'i', 6053, 'w', 'r', 'I', 'n', 's', 9345, 7409, 'C', '7873', '8401', '2779', '2119', '2079', '1823', '9039', 'i', '1233', '9923', 'U', '1569', 'I', '7679', 'f', 'U', 7983, 'H', 4815], [6287, 3111, 2953, 'Q', '7873', '8401', '2779', '2119', '2079', '1823', '9039', 'i', '1233', '9923', 'U', '1569', 'I', '7679', 'c', 'k', 7031, 'y', 1399, 'v', 7269]

SOLUTION:
7873, 8401, 2779, 2119, 2079, 1823, 9039, i, 1233, 9923, U, 1569, I, 7679