import algds.IOUtils;
public class aufgabe13 {
    public static void main (String args[]) {
        System.out.println ("Berechnung des Produktes zweier Faktoren");
        System.out.print(" x : ");
        int x=IOUtils.readInt();
        System.out.println (x);
        System.out.print(" y : ");
        int y=IOUtils.readInt();
        System.out.println (y);
        int s=0;
        int r;
        while (y>1){
            r=(y%2);
            if (r!=0){
            s+=x;}
            else s=s;
            y=(y/2);
            x=2*x;
        }
        if (y==1){
        s+=x;}
        else return;
        System.out.println("Produkt =  "+s);
}}