#include <iostream>
using namespace std;

#include <stdio.h>

class CLASSFUL
{
public:
	int mask;
	int leading;
	int netmask;

	CLASSFUL(){
	}
	CLASSFUL(int mask, int leading, int netmask) {
		this->mask = mask;
		this->leading = leading;
		this->netmask = netmask;		
	}
};

class IPINFO
{	
public:
	int a,b,c,d;
	int ip;
	int netid;

	IPINFO(){
	}
	IPINFO(int a, int b, int c, int d) {
		this->a = a;
		this->b = b;
		this->c = c;
		this->d = d;		
		pack();
	}	
	
	void pack()
	{
		this->ip = a*0x1000000 + b*0x10000 + c*0x100 + d;
	}
};

class jClassful {
	CLASSFUL **classiIp;
	IPINFO **Ip;
	#define N 3
	#define M 4
	public:
		jClassful() {
		classiIp = new CLASSFUL*[N];
		classiIp[0] = new CLASSFUL(0x80, 0x00, 0xFF000000);
		classiIp[1] = new CLASSFUL(0xC0, 0x80, 0xFFFF0000);
		classiIp[2] = new CLASSFUL(0xE0, 0xC0, 0xFFFFFF00);
		
		Ip = new IPINFO*[M];
		Ip[0] = new IPINFO(10, 1, 0, 3);
		Ip[1] = new IPINFO(192, 168, 0, 3);
		Ip[2] = new IPINFO(137, 168, 0, 1);
		Ip[3] = new IPINFO(137, 168, 249, 17);
		
	}
	
	void calcola()
	{
		for(int i = 0;i < M;i++)
		{
			for(int j = 0; j < N;j++)
			{
				if ((Ip[i]->a & classiIp[j]->mask) == classiIp[j]->leading)
			    {
					 Ip[i]->netid = (Ip[i]->ip & classiIp[j]->netmask);
					 printf("\n%3d.%3d.%3d.%3d",Ip[i]->a,Ip[i]->b,Ip[i]->c,Ip[i]->d);
					 printf(" classe %c (mask: %x) e netId %08X",'A'+j, classiIp[j]->netmask, Ip[i]->netid);					 
			    }
			}
		}
		printf("\n");
		for (int i=0; i<4-1; i++)
		  {
		    for (int j=i+1;j<4;j++)
		    {
		      if (Ip[i]->netid==Ip[j]->netid)
		      {
		    	  printf("\n%d.%d.%d.%d",Ip[i]->a,Ip[i]->b,Ip[i]->c,Ip[i]->d);
		    	  printf(" e %d.%d.%d.%d stessa rete",Ip[j]->a,Ip[j]->b,Ip[j]->c,Ip[j]->d);
		      }
		    }
		  }
	}
	

};

int main(){
		jClassful *c = new jClassful();
		c->calcola();
return 0;
}