Task: Program Execution
Input (English): 4, 6, ['i', 'Q', '3987', 'E', '6489', '5489', 'U', '4411', '2013', '5387', '7373', '3229', '9709', 'X', '6955', '9635', '8369', '97', '6173']
Output (English): 54896489E