/* 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
{
	class B extends Exception {
	}
	class A extends B {
	}
	void foo() throws A {
	}
	void bar() throws B {
		foo();
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
	}
}