/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		System.out.println(multiplied(1,2));
		System.out.println(multiplied(2,2));
		System.out.println(multiplied(2,2,3));
		System.out.println(multiplied(100000,100000,100000));
		System.out.printf("%20f", multiplied(100000,100000,100000));
	}
	
	public static double multiplied(int a, int ...bs) {
		double result = a;
		for (int b : bs) {
			result *= b;
		}
		return result;
	}
}