public class Second {

    public static void main(String [] args) {

	int i;
	int j;

	i = 4;
	j = 5;

	int k = i + j;

	System.out.println(k);
	System.out.println(i * j);

	double x = 1.2;
	double y = 0.3;

	System.out.println(x / y);
	System.out.println(y - x);

    }

}