class exemplo3{
public static void main(String args[]){
   int x=10, y=20;
System.out.println("a soma de x e y="+(x+y));
System.out.println("a subtraçao de x e y="+(x-y));
System.out.println("a multiplicacao de x e y="+(x*y));
System.out.println("a divisao de x e y="+(x/y));
System.out.println("o resto da divisao de x e y="+(x%y));
       }
      }