/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

interface Lambda {
	int call() throws IOException;
}

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args)
	{
		Foo(() -> {
			throw new FileNotFoundException();
		});
	}
	
	public static void Foo(Lambda x) {
		try {
			System.out.print(x.call());
		} catch (IOException ex) {
			ex.printStackTrace();
		}
	}
}