Task: Program Execution
Input (English): 6, 20, ['957', 'm', '1041', 'D', '7265', '4397', '779', '1127', 'Q', 'H', 'B', '9407', 'a', '2389', 'n', '5215', '4605', '7073', '4431', 'S', 'Y', '8975', 'D', '2725', '4921']
Output (English): 43977791127QHB9407a2389n5215460570734431S