In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['Y', 'a', 2789, 7059, 5341, 'X', 'f', 8799, 9649, 9073, 3291, 'n', 6483, 9211, 267, 'i', '4653', '5285', 'Y', '1103', '9485', 'L', 'S', '9003', '5795', 'A', 'Q', '4921', 'C', '4829', 'J', 'b', 'e', 'Z', '8003', '6391', 'p', '7449', '5787', '8769', '9305', '5503', 'b', '7669', '6159', 'E', 'B', 'h', 'k', 'A', 3691, 8663, 'G', 9683, 5381, 1695, 3045, 'F', 1987, 9295, 403], [825, 'x', 'K', 9075, 'v', 985, 'D', 'Z', 8313, 'X', '4653', '5285', 'Y', '1103', '9485', 'L', 'S', '9003', '5795', 'A', 'Q', '4921', 'C', '4829', 'J', 'b', 'e', 'Z', '8003', '6391', 'p', '7449', '5787', '8769', '9305', '5503', 'b', '7669', '6159', 'E', 'l', 'P', 'D', 411, 8497, 4791, 3107, 'o', 'b', 9367, 'c', 8137, 's', 'P', 'j', 'o', 1697, 'R', 5693, 3457, 365, 9365, 'x']