for (int i = 1; i <= 100; i++)
{
  if (i % 15 == 0)
  {
    Write("FizzBuzz");
  }
  else if (i % 5 == 0)
  {
    Write("Buzz");
  }
  else if (i % 3 == 0)
  {
    Write("Fizz");
  }
  else
  {
    Write(i);
  }

  // put a comma and space after every number except 100
  if (i < 100) Write(", ");

  // write a carriage-return after every ten numbers
  if (i % 10 == 0) WriteLine();
}
WriteLine();