def func(): while True: try: string = input().strip() result = string[::-1] string1 = "" for i in range(len(result)): if result[i] not in string1: string1 += result[i] print(string1) except: break if __name__ == "__main__": func()
def func(): while True: try: string = input().strip() result = string[::-1] string1 = "" for i in range(len(result)): if result[i] not in string1: string1 += result[i] print(string1) except: break if __name__ == "__main__": func()