#include<iostream.h>
#include<conio.h>
//coding using classes and constructors
class sq 
{
      private:
              int a;
      public:
             sq()
             {
               a=5;
               }
             sq(int x)
      {
             a=x;
      }
       ~sq()
       {
       }
       void show_data()
       {
            cout<<"******** Square********"<<endl<<endl;
            cout<<"Square of " << a <<" = "<<a*a;
       }
       };
       int main(void)
       {
           int i;
           for(i=5; i<=20; i=i+5)
                    {
                    sq obj(i);
                    obj.show_data();
                    cout<<endl;
                    }
                     getch();
       
       }