phonebook = {} number = 0 while True: input_line = input() input_line_split = input_line.split("-") if len(input_line) == 1: number = int(input_line) break name = input_line_split[0] phone_number = input_line_split[1] phonebook[name] = phone_number for _ in range(number): name = input() if name in phonebook: print(f"{name} -> {phonebook[name]}") else: print(f"Contact {name} does not exist.")