Task: Program Execution
Input (English): 8, 21, ['5153', '903', '6327', '4905', '605', '5305', '6103', 'c', 'e', 'O', 'O', '4987', '9561', 'u', 'c', 'r', 'g', '31', 's', '3547', '6475', 'x', 'c', 'v', 'h', '8409']
Output (English): ceOO49879561ucrg31s35476475