Task: Program Execution
Input (English): 4, 16, ['1015', '7013', '1519', '6289', 'l', '7179', '6285', '421', '4339', '5229', 'g', '805', '825', '4057', 'U', 'B', '1435', '5225', 'M', 'k', 'v', '5015', '2429']
Output (English): BU7504528508g9225933412458269717l9826