public class IntsAndDoubles {

    public static void main(String [] args) {

	int i = 6;
	int j = 10;
	double x = 3.0;
	double y = 5.0;

	System.out.println(i + j); // 1)
	
	System.out.println(x * y); // 2)

	System.out.println(i - x); // 3)
	
	System.out.println(j / x); // 4)

	System.out.println(j / i); // 5)

    }

}