Task: Program Execution
Input (English): 17, 19, ['u', 'L', '8085', '221', '1579', '5653', '6393', 'A', '9591', 'I', 'u', '5981', '9555', 'F', '521', 'i', 'g', '4091', 'A', 'w', 'Z']
Output (English): g4091A