Task: Program Execution
Input (English): 1, 11, ['5377', 'b', 'b', '4271', '5929', 'O', '8209', 'O', '315', '6945', '6921', '2025', '2117', '7407', '3', '6717', '6299', 'q', '6207', 'm', '7219']
Output (English): 5377bb42715929O8209O31569456921