Task: Program Execution
Input (English): 17, 20, ['7319', 'x', 'Q', 'U', 'd', 'G', 'Z', '2069', 'B', 'T', '333', '2543', 'h', '9253', 'e', '3801', 'O', '3853', '7127', 'k', '9655']
Output (English): k71273853O