#include<iostream>

using namespace std;
                 
int main(){
     int * ptr_a,* ptr_b;           
   ptr_a = new int;
   ptr_b = new int;
   int temp;
    
    cin>>*ptr_a>>*ptr_b;
    temp=*ptr_a;
    *ptr_a=*ptr_b;
    *ptr_b=temp;
    cout<<*ptr_a<<"  "<<*ptr_b<<endl;
    delete ptr_a,ptr_b;

    return 0;

}