Task: Program Execution
Input (English): 10, 18, ['C', '3515', '251', 'D', '4715', 'B', 'x', 'w', 'N', 'I', '5921', '8837', '2919', 't', 'g', 'A', 't', 'm', 'Z']
Output (English): I592188372919tgAtm