import java.security.*;
import java.io.*;

/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2002
 * Company:
 * @author
 * @version 1.0
 */

public class password{

  public static void main(String[] args) {
    try{
      MessageDigest md=MessageDigest.getInstance("SHA");
      MessageDigest md1=MessageDigest.getInstance("SHA");
      String data="ituser";
      byte buf[]=data.getBytes();
      md.update(buf);
      byte hash[]=md.digest();

      BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
      System.out.println("Please input passsword:");
      String data1=br.readLine();
      byte buf1[]=data1.getBytes();
      md1.update(buf1);
      byte hash1[]=md1.digest();

      boolean check=true;
      if(hash.length!=hash1.length)    check=false;
      for(int i=0;i<hash.length;i++)
       {    if(hash[i] != hash1[i])
            {   check=false;
            }
        }
       if(check)       System.out.println("Valid password!");
        else         System.out.println("Invalid password!");
    } catch(Exception e) {
      System.out.println(e);
    }
  }
}