Task: Program Execution
Input (English): 5, 21, ['3567', '4463', '4145', 'k', '8203', '9613', 'R', 'a', '5593', '5673', 'f', '7525', '6043', '2901', 'L', '8477', '5081', 'M', '2531', '1917', 'W', '5913', 'O', 't', '9813', 'x', '7027']
Output (English): W71911352M18057748L109234065257f37653955aR31693028