Task: Program Execution
Input (English): 4, ['9773', 'U', 'B', 'Q', 'v', 'F', 'W', '1485', 'W', 'I', 'K', '4013', 'g', '9217', '3139', '1215', '5633', '3195', 'I', 'R', '631', 'd', 't', 'z']
Output (English): 9773, U, B, Q