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

[EX Q]: ['U', 2021, 9935, '873', 'T', '9883', 'y', 8789, 'v'], ['g', 7321, '873', 'T', '9883', 'p', 9721]
[EX A]: 873, T, 9883

[EX Q]: ['L', 1653, 4833, 3597, 'B', 'A', 'g', '6735', '6737', '6929', '3051', 'v', '1223', '497', 'K', 4721, 'L', 'H', 'F', 'y', 2849], [9635, 3451, 'A', 'g', '6735', '6737', '6929', '3051', 'v', '1223', '497', 'd', 'f']
[EX A]: A, g, 6735, 6737, 6929, 3051, v, 1223, 497

[EX Q]: [585, 849, 273, 3871, 8231, 'x', 'E', 'u', 'c', '1277', '1563', 'E', 'c', '6621', '2567', '8023', '9633', 'V', 'z', '2891', '1737', '9547', '4685', '2791', 'f', '567', '4843', 'P', '3101', 'v', '3781', 'c', '6879', '7653', '4683', 'R', 'J', 'E', 3299, 7289, 6489], [7749, 6115, 'j', 6335, 'c', '1277', '1563', 'E', 'c', '6621', '2567', '8023', '9633', 'V', 'z', '2891', '1737', '9547', '4685', '2791', 'f', '567', '4843', 'P', '3101', 'v', '3781', 'c', '6879', '7653', '4683', 'R', 't', 9599, 3371, 4975, 'm', 5995, 'a', 'X', 6861, 1049, 6111, 1833, 5279, 1995, 'c', 'e', 6049]
[EX A]:
c, 1277, 1563, E, c, 6621, 2567, 8023, 9633, V, z, 2891, 1737, 9547, 4685, 2791, f, 567, 4843, P, 3101, v, 3781, c, 6879, 7653, 4683, R