Task: Program Execution
Input (English): 14, 18, ['8147', '225', '4635', '8773', '7765', '6965', 'm', '6727', 'N', '2891', '7213', '9733', 'I', '7135', 'x', 'x', '4955', '9859', '8965']
Output (English): 98594955xx7135