import java.util.*;
import java.lang.*;
import java.io.*;
 
interface IBase{
	int value = 12;
	int func();
}
 
class Sub implements IBase{
	Sub(){
		//
	}
	public int func(){
		return value;
	}
}
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Sub sub = new Sub();
		System.out.println(sub.value);
		System.out.println(sub.func());
 
		IBase base = new Sub();
		System.out.println(base.value);
		System.out.println(sub.func());
	}
}

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