In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
[7553, 'c', 'a', 'o', 8051, 1539, 'z', 'i', 'f', 's', 'b', 9807, 5865, 1789, 5487, 'p', 1001, 5231, 'o', 9691, 777, 'K', 'Q', '8201', 't', 'l', '7789', '9439', '2613', 'H', '8757', '5999', '5819', 'm', '263', 'H', '9573', 'Q', 'M', 'w', '8237', '2151', 'S', 'B', 'l', 3629, 2081, 'v', 8907, 'l', 5523, 9813, 'z', 'x', 'p', 'O', 'v'], [9835, 3337, 2733, 5325, 'Q', '8201', 't', 'l', '7789', '9439', '2613', 'H', '8757', '5999', '5819', 'm', '263', 'H', '9573', 'Q', 'M', 'w', '8237', '2151', 'S', 'B', 'j', 9603, 'A', 'j', 't', 'o', 'h', 'o', 'C', 2469, 7455, 'd', 8519, 'y']