1 import java.util.Scanner; 2  3 public class P1293 4 { 5     public static void main(String args[]) 6     { 7         try (Scanner cin = new Scanner(System.in)) 8         { 9             while (cin.hasNext())10             {11                 System.out.println(2 * cin.nextInt() * cin.nextInt() * cin.nextInt());12             }13         }14     }15 }