public static void main(String[] args) {
 Scanner in = new Scanner(System.in);
 int num1 = Integer.parseInt(in.next());
 double num2 = Integer.parseInt(in.next());
 if (num2 == 0) {
 System.out.println("Error: divide by zero!");

 } else {
 System.out.println(num1 / num2);
}
 }