Task: Program Execution
Input (English): 13, 16, ['2851', 'C', 's', '1273', '3141', 'g', 'J', '2091', 'd', 'J', '1945', 'b', 'x', '4953', 'M', 'S', '325', '3869', 'b', 'Y', '9805']
Output (English): SM3594x