Task: Program Execution
Input (English): 4, ['1969', '6731', 'j', 'b', 's', 'W', 'w', '7613', 'D', 'X', 'x', '1423', 'j', 'Y', 'A', 'Q', '8477', 'V', '4541', '5887', '6637', '2247', 'a', '5873', '1861', '5023', '1043']
Output (English): 1969, 6731, j, b