In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7923, 'F', 's', 'R', '6525', 'D', '6611', 'v', 'F', 's', '2467', 'k', '9313', 'C', '3775', '4075', '6523', '4281', 'z', 'D', '1269', 'j', '505', '7393', '2125', 'j', 'u', '397', 'J', 'm', 't', 's', 2725, 3985, 6261, 'M', 8711, 9453, 1303, 2921, 'X', 's', 'g', 5271], ['l', 'q', 'm', 'Z', 3811, 'o', 'y', 9283, 'f', 'A', 4197, 'l', 'G', 619, 'K', 6625, 'L', 1523, 8381, 9295, 's', 5853, '6525', 'D', '6611', 'v', 'F', 's', '2467', 'k', '9313', 'C', '3775', '4075', '6523', '4281', 'z', 'D', '1269', 'j', '505', '7393', '2125', 'j', 'u', '397', 'J', 'T', 4073, 3171, 9193, 'i', 6499, 'r', 2203, 7729, 8171, 813, 'y', 'A', 'L', 'G', 'Z', 8187, 'd']