Task: Program Execution
Input (English): 8, ['P', '8693', '537', 'R', '4251', 'L', 'v', '5601', '8837', 'q', '7151', '6021', '8831', 'P', '8857', '1033', '4933', 'W', '8803', '8733', 'v', 'Z', 'N', 'M', 'z']
Output (English): P, 8837, 4933, z