/* 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
{
	static class B
	{
		public void A()
		{
			System.out.println("A");
		}
	}
	static interface I
	{
		public void A();
	}
	static class C extends B implements I
	{
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		C c = new C();
		I i = c;
		i.A();
		c.A();
	}
}

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