private String message; Solution(String message) { this.message=message; } @Override public String getMessage() { return message; }

public static void main(String[] args) {
   Scanner sc=new Scanner(System.in);
   int b=sc.nextInt();
   sc.nextLine();
   int h=sc.nextInt();
   sc.close();
   if(b>0 && h>0)
   {
    System.out.println(b*h);
   }
   else
   {
    try{
        throw new Solution("java.lang.Exception: Breadth and height must be positive");
    }
    catch(Exception e){
        System.out.println(e.getMessage());
    }
   }
}