static void Main(string[] args)
{
MyInt n1 = new MyInt(10);
MyInt n2 = new MyInt(20);
bool n1LessThanN2 = n1 <= n2;
MyInt n3 = MyInt.Plus(n1, n2);
MyInt n4 = n1 + n2;
Console.WriteLine("n3 = {0}", n3);
Console.WriteLine("n4 = {0}", n4);
MyInt n5 = n1 + 22;
MyInt n6 = n2--;
Console.WriteLine("n2 = {0}", n2);
Console.WriteLine("n6 = {0}", n6);
MyInt n7 = ++n5;
Console.WriteLine("n5 = {0}", n5);
Console.WriteLine("n7 = {0}", n7);
Console.ReadKey();
}
public static MyInt Plus(MyInt a, MyInt b)
{
return(new MyInt(a._n + b._n));
}