写出下面程序的执行结果？

#includeiostream. h　class A{　int a,b;　public:　A(int i,int j){a=i;b=j;}　void move(int x,int y){a+=x;b+=y,}void show().{cout(°ac)b)ln";}} ;class B:privateA{int x,y,public:B(int i,int j,int k,int 1):A(i,j){x=k;y=1;}void show( ){coutx","yendl;}void fun( ){move(3,5);}void f1( ){A::show( );}} ;void main(){Ae(1,2);e. show( );Bd(3,4,5,6);D. fun( );D. show( );D.f1( );}