In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
['N', 1775, 't', 385, 1349, 'T', 'E', 'u', 5647, 't', 'd', 'I', 'r', 'f', '6045', 'U', '9023', '9857', 'R', 'Y', 'w', 'P', '7089', '9679', '1507', 'S', '6815', 'Y', 'c', 'H', 'I', 'Q', 'Y', 'M', 7789, 'J', 'I', 4813, 6533, 1745, 'y', 4711, 'E', 'F', 5191, 's', 6979], ['W', 'F', 2799, 'I', 'r', 'f', '6045', 'U', '9023', '9857', 'R', 'Y', 'w', 'P', '7089', '9679', '1507', 'S', '6815', 'Y', 'c', 'H', 'I', 'Y', 'k', 6395, 'L', 5747, 'l', 4081, 'v', 3129, 7249, 375, 4575, 4725, 'R', 'A', 4761, 3217, 5203, 'E', 'T']