TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['B', 'r', 5629, 4409, 7197, 'N', 'x', 'I', '6145', 'i', 'Q', '1033', '2945', 'K', '4931', 'y', 6505, 9149, 'E', 3067, 819], [2523, 'f', 2623, 'I', '6145', 'i', 'Q', '1033', '2945', 'K', '4931', 'a', 5449, 9193, 6325, 'i', 6901, 'E']

SOLUTION: I, 6145, i, Q, 1033, 2945, K, 4931

PROBLEM: [1363, 'O', 'u', '3885', 'y', '2105', '1495', '417', 'n', 9057, 2977], ['x', 'X', '3885', 'y', '2105', '1495', '417', 'X', 2883]

SOLUTION: 3885, y, 2105, 1495, 417

PROBLEM: ['X', 9619, 'r', 'R', 'L', 'E', '2631', 'N', '615', 'x', '3851', 'z', 'Y', 1601, 43], ['M', 7325, 4167, 'L', 'E', '2631', 'N', '615', 'x', '3851', 'z', 'R', 'l', 2123]

SOLUTION:
L, E, 2631, N, 615, x, 3851, z