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#include <iostream.h>
#include <stdlib.h>
#include <string>
using namespace std;

int main()
{
int numberofdogs;
int *ptrnum;
int numofcats;

numberofdogs= 30;
ptrnum = &numberofdogs;
cout<< *ptrnum<<endl;
numofcats = 40;
ptrnum = &numofcats;
cout<< *ptrnum<<endl;
system("PAUSE");
return 0;

}