import java.util.*;
import java.io.*;

public class hello {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);



		Console  cons = System.console();




//		 Console console = System.console();
//		        String password = new String(console.readPassword());
//		        System.out.println("password="+password);


		System.out.println("------歡迎使用-測試系統v0.1版------");

		System.out.println("(1)登入"+'\n'+"(2)註冊"+'\n'+"(3)忘記密碼");


		int number = sc.nextInt();
			switch (number) {

			case 1:
			System.out.print("帳號:");
			String username = sc.next();
			System.out.print("密碼:");
			String userpasswd = sc.next();

				break;
			case 2:
			break;

			}


	}

}