Task: Program Execution
Input (English): 3, 7, ['i', '4313', 'S', '3475', 's', '2273', '7199', 'P', 'j', 'a', '561', 'E', '1811', 'A', '7809', 'b', 'L', 'D', 'N', '4381', 'f']
Output (English): S3475s22737199