package resta;
import java.io.*;
			
public class Resta {

public static int restar(int r) throws IOException
{
BufferedReader in=new BufferedReader(new InputStreamReader (System.in));

int num1;
int num2;
int resta;

System.out.println("Escribe un numero: ");
num1= Integer.valueOf(in.readLine().trim()).intValue();

System.out.println("Escribe otro numero para restar: ");
num2= Integer.valueOf(in.readLine().trim()).intValue();

resta= num1-num2;
return resta;

}

public static void main(String [] args) throws IOException
{
    int res= Resta.restar(0);
    System.out.println(res);
}
}