Task: Program Execution
Input (English): 2, 10, ['5015', 'Q', '5439', 'x', 'b', 'P', '2953', '861', '5423', '5307', '5507', '7177', '1241', '2551', 'z', 's', 'k', 'F', '741', 'F']
Output (English): Q5439xbP295386154235307