In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7749, 8785, 'Z', 'R', 'E', 'e', 'G', '9233', 'D', 'V', 'l', '5001', 'F', '867', 'F', 'j', '8573', 'h', '9733', '9489', 'o', 'd', 'F', 'k', '9621', '9841', 'N', 'M', 'i', 7619, 's', 879, 5617, 'm', 1781, 4797, 'K', 'V', 7025, 'P', 'N', 4969, 'd', 4805, 935, 'u', 'B', 'W', 'U', 5005], ['a', 2363, 'p', 'r', 'r', 'f', 'g', 'H', 'W', 6965, 4627, 'E', 'e', 'G', '9233', 'D', 'V', 'l', '5001', 'F', '867', 'F', 'j', '8573', 'h', '9733', '9489', 'o', 'd', 'F', 'k', '9621', '9841', 'N', 'M', 'k', 'X', 263, 'A', 1389, 'S', 'j', 'y', 'R', 'e', 'K', 'B', 'q', 6247, 'd', 'Q', 235, 9393, 'k', 2577, 'b', 6149, 'z']