class A
	begin
		int x, y;  
	end
	
class B
	begin
		int z;
		A a;
	end

B b;
^A a = b.a;

b.a.x = 3;
b.a.y = 4;
b.z = 5;

printf( "%d, %d, %d\n", a.x, a.y, b.z );
