Task: Program Execution
Input (English): 4, 18, ['6017', '3811', 'g', 'X', '5289', 'G', '6203', 'L', 'd', '8897', '4557', 'g', '5753', 'I', 'I', 'M', '9773', 'C', 'f']
Output (English): C9773MII5753g45578897dL6203G5289X