/* 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 Ideone
{
	private int i = 0;
	public void inc() {
		i++;
	}
	public void println(){
		System.out.println(i);
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		Ideone c1 = new Ideone();
		Ideone c2 = new Ideone();
		c1.println();
		c2.println();
		c2 = c1;
		c1.inc();
		c1.println();
		c2.println();
	}
}

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