Task: Program Execution
Input (English): 6, 18, ['3529', 'F', 'Y', '9213', '555', 'Y', '6229', '5369', 'G', 'P', 'o', 'X', 'J', 'B', 'U', '495', '463', 'J', '843', 'F', 's', 'g', 'S', 'a']
Output (English): Y62295369GPoXJBU495463J