Task: Program Execution
Input (English): 1, 15, ['6739', '2257', '6943', 'M', '8115', '7763', '5077', '6531', 'v', 'T', '1135', '5897', '4497', 'y', '5579', '7657', 'r', '3971']
Output (English): 5579y449758971135Tv6531507777638115M694322576739