TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [6551, 'm', 4517, 'K', 9519, 'N', 6797, 'A', 'a', 5043, 2961, 1305, 'J', 'M', 'g', 5639, 6235, '9717', '6917', '7949', 'e', '2855', 'V', '4493', 'G', '375', 'e', '9909', 'J', 't', 'N', '4535', '9963', '8917', 'W', 'P', 'd', 9867, 6599, 'W', 'N', 4217, 'c', 5009], ['t', 9641, 7799, '9717', '6917', '7949', 'e', '2855', 'V', '4493', 'G', '375', 'e', '9909', 'J', 't', 'N', '4535', '9963', '8917', 'W', 'U', 'f', 8123, 'U', 3339, 4751]

SOLUTION: 9717, 6917, 7949, e, 2855, V, 4493, G, 375, e, 9909, J, t, N, 4535, 9963, 8917, W

PROBLEM: ['l', 8391, 7237, 'j', 5061, '1867', 'R', '5053', 'H', 'R', 'd', 'K', 8013, 'H'], ['H', 7623, '1867', 'R', '5053', 'H', 'R', 'd', 'e', 3679, 'd', 'M', 'j']

SOLUTION: 1867, R, 5053, H, R, d

PROBLEM: ['I', 'n', 5427, '1763', 'f', 'L', '753', 'D', 8731], ['e', 4691, 'H', '1763', 'f', 'L', '753', 'h', 'c']

SOLUTION:
1763, f, L, 753