Task: Program Execution
Input (English): 6, ['4837', '8615', '1873', '3349', '7629', 'a', '8219', 'y', 'Z', 'm', 'D', '7255', 'H', '481', 'e', '8915', '821', '4971', '6317', 'e']
Output (English): 4837, 8615, 1873, 3349, 7629, a