Task: Program Execution
Input (English): 20, 22, ['4207', '7627', '4519', '2793', '5975', 'u', '9097', 'a', '1977', '7653', '5517', 'D', 'X', 'd', '8947', '2931', 'X', 'E', '3409', '8391', '533', '7057', '6413', '2751', '8773', '6949', '2169']
Output (English): 15981