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

Ex Input:
['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]

Ex Output:
r, l, N, J, 7029, l, m

Ex Input:
['c', 7387, '4905', '999', '5697', 'G', '9975', 'f', 'I', '2807', '6785', '7473', '9999', '8011', 'W', 'i', 'A', 7573], ['K', 'g', 'b', 'u', 7899, 'k', 's', 223, '4905', '999', '5697', 'G', '9975', 'f', 'I', '2807', '6785', '7473', '9999', '8011', 'h', 7411, 83, 'T', 9199, 't', 9245]

Ex Output:
4905, 999, 5697, G, 9975, f, I, 2807, 6785, 7473, 9999, 8011

Ex Input:
['I', 'Y', 9177, 6381, 'y', 'I', '4461', '2545', 'U', 'i', 'F', '9791', 'V', '573', 'V', 'l', 'i', 'q', 'b', 9595, 'b', 8473], ['f', 6777, 'y', 'I', '4461', '2545', 'U', 'i', 'F', '9791', 'V', '573', 'V', 'l', 'i', 'e', 2029, 2959, 'D', 4657, 'Z', 6151, 'Y', 'z', 'O', 5909, 'i']

Ex Output:
y, I, 4461, 2545, U, i, F, 9791, V, 573, V, l, i