Task: Program Execution
Input (English): 15, 19, ['J', 'v', 'z', '7537', '3715', '4367', 'K', '4145', 'Y', 'L', '3925', 'z', '6227', 'd', '9819', '1007', '4933', 'X', 'm', '9679', '9709', '721', '2187', 'u']
Output (English): mX339470019189