public static void Main()
Console.WriteLine("Begin");
Console.WriteLine("mod : 1 % " + i.ToString() + " : " + (mod1==0));
Console.WriteLine("mod : 2 % " + i.ToString() + " : " + (mod2==0));
Console.WriteLine("mod : 3 % " + i.ToString() + " : " + (mod3==0));
Console.WriteLine("mod : 4 % " + i.ToString() + " : " + (mod4==0));
Console.WriteLine("-------------------------");
Console.WriteLine("End");