public class Person {
	public String name="Li Si";
	public int age=20;
	private double height=170;
	public Person(String n,int a,int h)
	{name=n;
	 age=a;
	 height=h;}
	public Person(String n,int a)
	{name=n;
	age=a;}
	public  Person(String n,double h)
	{name=n;
     height=h;}
	public Person()
	{}
	public void print()
	{System.out.println(" My name is "+name+",I'm at the age of "+age+" and I'm in height of "+height+".");}

}