In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[5671, 3463, 'D', 'V', 1539, 9597, 425, 773, 's', 7875, 143, 'c', 4491, 7067, 205, 'I', 'm', '6075', 'U', 'C', 'a', 'q', '8457', 'j', 'P', 'V', '3721', '1179', '8845', '5451', '9681', 'q', '131', 'b', '3369', 'b', 'N', 'x', 'D', 'I', 9153, 'u', 'b', 6361, 'W', 3897, 5873, 2907, 'y', 'y', 'f', 'Y', 'a', 's', 'U', 7891, 2785, 1219], ['l', 9901, 't', 'P', 7221, 'O', 'z', 6855, 'u', 1449, 7097, 'K', 'r', 7179, 'Y', '6075', 'U', 'C', 'a', 'q', '8457', 'j', 'P', 'V', '3721', '1179', '8845', '5451', '9681', 'q', '131', 'b', '3369', 'b', 'N', 'x', 'D', 'B', 'D', 'p', 'P', 'c']