Task: Program Execution
Input (English): 3, ['W', '3741', '5963', 'a', '6989', '8411', '4195', 'U', '2735', '1459', '1769', '3473', '2005', 'g', '4181', '887', '7779', 'Q', 'd', '6967', '7133', '4463', '3487', '8181']
Output (English): W, 3741, 5963