import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;
public class ylq {
public static void main(String[] args) {
  Set<Student> set=new TreeSet<Student>();
  set.add(new Student(23,"ylq"));
  set.add(new Student(22,"zzy"));
  set.add(new Student(23,"yyb"));
  Iterator<Student> it=set.iterator();
  while(it.hasNext())
  {
   Student s=it.next();
   System.out.println(s.getage()+s.getname());
  }
}
}


public class Student implements Comparable{
          private int age;
          private String name;
          Student(int age,String name)
          {
           this.age=age;
           this.name=name;
          }

public int compareTo(Object o) {
     Student stu=(Student) o;
     if(this.age>stu.age)
      return 1;
     if(this.age==stu.age)
      return this.name.compareTo(stu.name);
      return -1;     
}
public int getage()
{
return age;
}
public String getname()
{
return name;
}

}

import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;
public class ylq {
public static void main(String[] args) {
  Set<Student> set=new TreeSet<Student>();
  set.add(new Student(23,"ylq"));
  set.add(new Student(22,"zzy"));
  set.add(new Student(23,"yyb"));
  Iterator<Student> it=set.iterator();
  while(it.hasNext())
  {
   Student s=it.next();
   System.out.println(s.getage()+s.getname());
  }
}
}


public class Student implements Comparable{
          private int age;
          private String name;
          Student(int age,String name)
          {
           this.age=age;
           this.name=name;
          }

public int compareTo(Object o) {
     Student stu=(Student) o;
     if(this.age>stu.age)
      return 1;
     if(this.age==stu.age)
      return this.name.compareTo(stu.name);
      return -1;     
}
public int getage()
{
return age;
}
public String getname()
{
return name;
}

}