// This is the "classic" solution to the FizzBuzz problem.
for (int i = 1; i <= 100; i++)
{
    if (i % 3 == 0 && i % 5 == 0)
    {
        Console.WriteLine("FizzBuzz");
    }
    else if (i % 3 == 0)
    {
        Console.WriteLine("Fizz");
    }
    else if (i % 5 == 0)
    {
        Console.WriteLine("Buzz");
    }
    else
    {
        Console.WriteLine(i.ToString());
    }
}

// This is a "contemporary" solution to the FizzBuzz problem using ONE LINE of LINQ!
Enumerable.Range(1, 100).ToList().ForEach(n => Console.WriteLine((n % 3 == 0) ? (n % 5 == 0) ? "FizzBuzz" : "Fizz" : (n % 5 == 0) ? "Buzz" : n.ToString()));