/*
TASK:phrope
LANG:C++
*/
#include <iostream>
using namespace std;
int main()
{
  unsigned long a,b;
  cin>>a>>b;
  if((a>b)&&!(a%2))
    cout<<a<<" "<<a/2;
  else if((b>a)&&!(b%2))
    cout<<b/2<<" "<<b;
  else if((a<b)&&!(a%2))
    cout<<a<<" "<<2*a;
  else if((b<a)&&!(b%2))
    cout<<2*b<<" "<<b;
  else
    cout<<"0 0";
  return 0;
}
