public class SleepTest extends Thread{
 	String light ;
 	SleepTest(String light){
	this.light=light;}
  	public void run(){
		try{
			for(int i=1;i<=5;i++){
System.out.println(light+i+"");
	  			sleep(100);
			}
		}
		catch(Exception e){
			System.err.print(e);
		}
}
public static void main(String[] args){
		new SleepTest("1ŵ").start();
		new SleepTest("2ŵ").start();
	}
}
