fuck

import java.util.Scanner;

public class tempprime {

    static Scanner input = new Scanner(System.in);
    public static void main(String[] args) {
        boolean isvalid = true;

        System.out.print("Enter integers: ");
        String num = input.nextLine();    // get the entire line after the prompt
        String[] numbers = num.split(" ");

        int[] integers = new int[numbers.length];
        for (int i = 0; i < numbers.length; i++){
            integers[i] = Integer.parseInt(numbers[i]);

        }

        if (integers[0] <= 0){
            isvalid = false;
            System.out.println("Bad input.");}

        else {
            int i = 0;
            int product = integers[0];
            while (i < integers.length - 1) {
                if (integers[i+1]>0){
                    product = product * integers[i+1];
                i++;}
                else
                    break;



            }
            System.out.print(product);
        }


    }