for (Int32 i = 1; i <= 100; i++)
{
if (i % 3 == 0 && i % 5 == 0)
Console.WriteLine(i + " is a multiple of both 3 AND 5!");
if (i % 3 == 0)
Console.WriteLine(i + " is a multiple of 3");
if (i % 5 == 0)
Console.WriteLine(i + " is a multiple of 5");

}