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

['s', 'M', 'y', 'b', 'S', 'P', 'J', '8781', '7865', '1961', '6767', 'a', 'r', 'H', 'j', 'a', 'b', 'i', 'A', 2579, 8191, 'g', 3591, 4195, 'q', 1357], ['F', 'U', 'G', 7763, 1385, 'm', 1089, 4701, 1565, 'm', 9713, 'P', 'J', '8781', '7865', '1961', '6767', 'a', 'r', 'H', 'j', 'a', 'X', 'b', 'f', 7385, 'G']
P, J, 8781, 7865, 1961, 6767, a, r, H, j, a

['S', 'd', 'z', 2305, '2731', 'W', '5987', '4043', 'w', 'v', 'S', 'v', '1143', '1725', '9073', '4411', '9321', '1213', '3111', '2527', 'U', 'U', 'y', 'N', 'n', 6769], ['Q', 'T', 'n', 1267, 5099, 57, 4739, 295, 8099, 'n', '2731', 'W', '5987', '4043', 'w', 'v', 'S', 'v', '1143', '1725', '9073', '4411', '9321', '1213', '3111', '2527', 'U', 'K', 'n', 'N', 'b', 3941, 3443, 'A', 7927, 'g', 'h']
2731, W, 5987, 4043, w, v, S, v, 1143, 1725, 9073, 4411, 9321, 1213, 3111, 2527, U

['K', 'y', 'T', '55', 'U', 'u', 'E', 'Y'], [3913, 1449, 'j', '55', 'U', 'u', 'j', 7417, 'u']

55, U, u