TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['l', 8387, '6019', 'r', 't', 'Y'], ['S', 'q', '6019', 'r', 'Z', 9863]

SOLUTION: 6019, r

PROBLEM: [225, 'D', 4905, 3065, 'e', 'I', 'V', 3599, 'D', 5851, 2675, 4601, 7721, 'B', 'W', '8579', '5823', 'j', 'o', 'A', 'x', '9525', '6535', '7653', 'r', '7807', 'o', 'h', '5139', '3941', 'T', 'U', 2673, 6825, 'r', 3045, 5503, 'L', 'y', 7333, 5693], [4873, 9897, 2905, 9917, 'Q', 7565, 'w', 6631, 3015, 'n', 's', 't', 9913, 'Q', 'W', '8579', '5823', 'j', 'o', 'A', 'x', '9525', '6535', '7653', 'r', '7807', 'o', 'h', '5139', '3941', 'T', 'p', 8733, 'o', 2341, 777, 'q', 's']

SOLUTION: W, 8579, 5823, j, o, A, x, 9525, 6535, 7653, r, 7807, o, h, 5139, 3941, T

PROBLEM: ['i', 6139, 'B', 'z', 'A', 7029, 'r', 'l', 'N', 'J', '7029', 'l', 'm', 'F', 1251], ['d', 9233, 543, 5455, 8707, 'r', 'l', 'N', 'J', '7029', 'l', 'm', 'r', 4751]

SOLUTION:
r, l, N, J, 7029, l, m