/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class A extends Thread{
	public void run()
	{
		System.out.println("7788");
		System.out.println("77 88");
	}
}
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
	   Thread t1=new A();
	   Thread t2=new A();
	   t1.start();
	   t2.start();// your code goes here
	}
}

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