Task: Program Execution
Input (English): 17, 20, ['8039', '2773', 'G', 'I', 'f', '3973', '3157', 'T', 'n', '591', 'y', '3841', '6527', '1703', 'B', 'G', '2091', 'D', 'c', '8257', 'r', '8741', '1909', '3333']
Output (English): 2091Dc8257