Task: Program Execution
Input (English): 1, 7, ['3497', 'M', '6223', '6509', 'I', 'Y', 'B', 'Z', 'I', '8687', '8945', '5793', 'C', 'L', '6413', 'g', '5955', 'L', '1765']
Output (English): 3497, M, 6223, 6509, I, Y, B