In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7255, 'A', 'F', 'k', '7223', 'b', '3871', '9165', 'W', 'c', '5253', '9445', 'q', 'B', 'Y', 5637, 'd', 'H', 'f', 915, 6017, 'p', 2453, 7355], ['P', 'u', 'F', 'k', '7223', 'b', '3871', '9165', 'W', 'c', '5253', '9445', 'q', 'p', 7133]