Task: Program Execution
Input (English): 4, 9, ['6573', 'p', '707', 'N', '4755', 'B', 'M', '4857', '9977', '6037', '7347', 'S', 'B', 'l', 'R', 'y', '8251', 'V', '9749']
Output (English): 9977, 4857, M, B, 4755, N