TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['i', 'n', '7509', '7241', 'V', 'k', 205, 'H'], ['s', 4349, 7023, '7509', '7241', 'V', 'O', 't', 9237]

SOLUTION: 7509, 7241, V

PROBLEM: [3409, 'W', 7371, 705, 4353, 6055, 1109, '2039', '1331', 'M', '1507', '1583', '9005', '3561', 'm', '3453', '9927', 'L', '5625', '3923', '5839', 'b', 'a', '1865', 'l', 'Z', '4855', '2985', 'l', '7011', 'Z', 'f', '6205', 'd', 'r', 5975, 7455, 'P', 7563, 'A', 797, 'm', 'y', 'S'], [851, 'D', 'Z', 't', 'd', 189, 'V', 'o', 8559, 3455, '2039', '1331', 'M', '1507', '1583', '9005', '3561', 'm', '3453', '9927', 'L', '5625', '3923', '5839', 'b', 'a', '1865', 'l', 'Z', '4855', '2985', 'l', '7011', 'Z', 'f', '6205', 'x', 'q', 7907, 857, 2245, 5847, 'h']

SOLUTION: 2039, 1331, M, 1507, 1583, 9005, 3561, m, 3453, 9927, L, 5625, 3923, 5839, b, a, 1865, l, Z, 4855, 2985, l, 7011, Z, f, 6205

PROBLEM: [9769, 'q', '2259', '215', 'g', 8871], ['e', 7695, '2259', '215', 'Q', 'U']

SOLUTION:
2259, 215