#include<bits/stdc++.h>
using namespace std;
typedef		long long       ll;
typedef		vector<ll>      vll;
#define		pb              push_back
#define         O_O             ios_base::sync_with_stdio(false); cin.tie(NULL)
#define		PB              pop_back
#define		nn              "\n"
#define		all(p)          p.begin(),p.end()
#define		zz(v)           (ll)v.size()
#define		ss              ' '
#define 	S(a)            scanf("%lld",&a)
#define 	SS(a,b)         scanf("%lld %lld",&a,&b)
#define 	SSS(a,b,c)      scanf("%lld %lld %lld",&a,&b,&c)
#define		gcd(a,b)        __gcd(a,b)
#define		lcm(a,b)        (a*b)/gcd(a,b)
#define		pi              acos(-1.0)

class shape
{
    public :
    int l , w;

    virtual void func()=0;
    virtual void func1()=0;
    void set(int a,int b)
    {
        l=a;
        w=b;
    }
};

class square : public shape
{
public :
    void func()
    {
      cout<<l*l<<endl;
    }

    void func1()
    {
        cout<<l*4<<endl;
    }

};

class rectangle : public shape
{
public :
    void func()
    {
      cout<<l*w<<endl;
    }

    void func1()
    {
        cout<<2*(l+w)<<endl;
    }

};



int main()
{
      // freopen("in.txt","r",stdin);

       square o1;
       rectangle o2;
       o1.set(3,3);
       o1.func();
       o1.func1();


       o2.set(5,3);
       o2.func();
       o2.func1();






    return 0;
}