TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [2687, 7971, 2141, 'X', 'z', 1281, 'K', 6109, 7773, 'P', 5247, 'j', 'K', 5225, 'c', 4401, 'Z', 'j', 'Y', '4799', 'h', '5519', 'n', '3231', 'l', '3003', 'F', '5599', 'J', 'q', 'r', '889', 'e', '9805', 'X', 'B', 'k', 4913, 5483, 1465, 'F', 9669, 'i', 'L', 'q', 'n'], ['k', 'g', 'e', 'I', 'v', 97, 'N', 'j', 'Y', '4799', 'h', '5519', 'n', '3231', 'l', '3003', 'F', '5599', 'J', 'q', 'r', '889', 'e', '9805', 'X', 'H', 7153, 7967, 'u', 7859, 1387, 7361]

SOLUTION: j, Y, 4799, h, 5519, n, 3231, l, 3003, F, 5599, J, q, r, 889, e, 9805, X

PROBLEM: [8523, 2741, 'B', 2283, 2319, 5579, 4895, 1093, '6081', 'w', 'j', 'U', '8951', 'g', '3325', '6587', '4979', 'X', 'x', '8257', 'G', 2491], [17, 6185, '6081', 'w', 'j', 'U', '8951', 'g', '3325', '6587', '4979', 'X', 'x', '8257', 'n', 4549, 'g', 1859, 'f', 'B', 4639, 6413]

SOLUTION: 6081, w, j, U, 8951, g, 3325, 6587, 4979, X, x, 8257

PROBLEM: [7005, 21, 'n', '3579', '9067', '3247', '2609', '6713', '8049', 'T', 'l', 2985, 'F', 8573], ['r', 'g', '3579', '9067', '3247', '2609', '6713', '8049', 'T', 'j', 'O', 't', 'k']

SOLUTION:
3579, 9067, 3247, 2609, 6713, 8049, T