TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: ['q', 'O', 7981, 'U', 'V', 's', 't', 6911, 'i', 'K', 'O', 'F', 1359, 3839, 'g', '2555', 'H', '9877', 'Y', '3433', '5661', '2061', 'j', 'j', '2413', '3795', 'c', '6529', 'F', '1099', 'f', 'U', 'b'], ['V', 'D', '2555', 'H', '9877', 'Y', '3433', '5661', '2061', 'j', 'j', '2413', '3795', 'c', '6529', 'F', '1099', 'U', 'm', 8601, 881, 1009, 1759, 5669, 8581, 'm', 8715, 8913]

SOLUTION: 2555, H, 9877, Y, 3433, 5661, 2061, j, j, 2413, 3795, c, 6529, F, 1099

PROBLEM: ['i', 'n', '7509', '7241', 'V', 'k', 205, 'H'], ['s', 4349, 7023, '7509', '7241', 'V', 'O', 't', 9237]

SOLUTION: 7509, 7241, V

PROBLEM: ['e', 1365, 'k', 'Q', '9373', 'f', 'z', 'Y', 'j', 4447, 7511], ['C', 6641, 'C', '9373', 'f', 'z', 'Y', 'A', 'X']

SOLUTION:
9373, f, z, Y