Task: Program Execution
Input (English): 8, 12, ['7843', 'C', 'z', '3559', 'F', 'N', 'x', '1619', 'X', '7629', 'g', 'u', '6907', 'h', '2653', '7473', 'J', 'i', '5583', 'v']
Output (English): 1619X7629gu