#include<iostream>
using namespace std;
int main(){

   int a=25,b=32,tmp; 
   int *ptr_a, *ptr_b;

    ptr_a=&a;
    ptr_b=&b;
    
    cout<<*ptr_a<<"  "<<*ptr_b<<"  ";
    cout<<ptr_a<<"  "<<ptr_b<<"  ";
        tmp=*ptr_a;
       *ptr_a=*ptr_b;
        *ptr_b=tmp;
        cout<<a<<"  "<<b<<endl;
    return 0;
}