In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[8153, 'c', 'S', 1153, '3521', 'L', 'P', 'M', '7491', 'z', '477', '3457', 'R', 9103, 'V', 't', 8813, 'T'], [7601, 'z', '3521', 'L', 'P', 'M', '7491', 'z', '477', '3457', 'D', 4419, 'R', 2105, 345, 'V', 'F', 'm']