public class Program
{
  public static int Factorial(int num)
  {
    if(num == 1)
      return 1;
    else
      return num * Factorial(num-1);
  }
}

public class Program
{
  public static string Stutter(string word)
  {
    return $"{word.Substring(0,2)}... {word.Substring(0,2)}...{word}";
  }
}

public class Program 
{
  public static int convert(int minutes) 
  {
    return minutes*60;
  }
}

public class Program 
{
    public static bool LessThanOrEqualToZero(double a) 
    {
      return a <= 0;
    }
}