Task: Program Execution
Input (English): 16, 18, ['2907', '3897', 's', '7399', '8615', 'Q', '8965', 'j', 'a', 'Z', '8433', '6533', '7227', 'g', 'd', 'k', '2951', 'o', '2433', 'u', 'h', '1451', '2583']
Output (English): o2951k