import java.util.*;

public class Calculate {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Num1: ");
        int num1 = input.nextInt();
        System.out.print("Num2: ");
        int num2 = input.nextInt();
        if (num1 > 0 && num2 > 0) {
            int sum = num1 + num2;
            System.out.println("Sum= " + sum);
            int diff = 0;
            if (num1 > num2) {
                diff = num1 - num2;
            } else {
                diff = num2 - num1;
            }
            System.out.println("Difference= " + diff);
            int prod = num1 * num2;
            System.out.println("Product= " + prod);
            double pow = Math.pow(num1, num2);
            System.out.println("power= " + pow);
        } else {
            System.out.println("Invalid Number");
            System.out.println("End of program");
        }
    }
}