using System;
class Test
{
   public static int Multiply(int a, int b, int c)
   {
      return a * b * c;
       }
   public static void Display(string yy)
   {
       Console.WriteLine(yy);
       }
   public static void Main()
   {
       Display(Multiply(50,30,78).ToString());
       }
}

using system;
class test() {
  public static void main() {
    Console.WriteLine((50 * 30 * 78).ToString());
  }
}