Task: Program Execution
Input (English): 8, 15, ['2543', '5367', '1203', '3665', '8701', '4733', '6505', 'o', 'I', 'B', 'l', 'C', '5451', 'i', '7871', '3049', '5861']
Output (English): 7871i5451ClBIo