using System;

public class Program

{

    public static void Main()

    {

        int a = 0 , myWord = 1;

      string str = "Hello World!";

      while (a <= str.Length-1) {

         if(str[a]==' ' || str[a]=='\n' || str[a]=='\t') {

            myWord++;

         }

         a++;

      }

      Console.Write("Number of words in the string = {0}\n", myWord);

 }

}