Task: Program Execution
Input (English): 12, 19, ['e', 'f', '3961', '823', '4493', '8479', 'L', '327', 'E', '569', 'W', 'w', '9177', '8815', '6531', 'v', 't', 'x', '1537', 'U', 'O', 'a', '9777']
Output (English): 7351xtv135651887719w