public class A
{
public A( int x )
{
this.x = x;
}
public A() : this( 0 )
{
}
internal int x;
}
public class B : A
{
public B() : base( 1 )
{
}
}
public class MainClass
{
static void Main()
{
B b = new B();
System.Console.WriteLine( "A.x = {0}", b.x );
}
}