Task: Program Execution
Input (English): 4, 12, ['5891', '5581', 'U', 'B', '5063', '8927', '1091', 'O', 'q', '2883', 'E', 'k', '6837', '2345', 'I', 'J', '8837', '1105', '6067', '6223', 'U', '5349', '9981']
Output (English): kE3882qO190172983605B