TASK DEFINITION: In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.
PROBLEM: [7045, 'e', 3545, 6563, '5913', 'X', '5591', 'o', 'T', 'b'], [145, 'm', 'I', 'F', '5913', 'X', '5591', 'o', 'F', 6499, 3777]

SOLUTION: 5913, X, 5591, o

PROBLEM: ['o', 'f', '955', 'y', 'O', 2181], ['M', 'l', '955', 'y', 'h', 5209]

SOLUTION: 955, y

PROBLEM: [8995, 2973, 5945, 'E', 'C', '1631', '9223', '2191', 'c', 'x', 'd', 'u', 't', 5039], [5809, 'e', 'o', 'E', 'C', '1631', '9223', '2191', 'c', 'x', 'A', 6947, 'A', 8079]

SOLUTION:
E, C, 1631, 9223, 2191, c, x