
int main()
{
 	int m, pin; //m???????pin??????????? 
 	
 	cin >> m; //?????? 
 	
 	for ( int i = 3; i <= m / 2 ; i += 2 ) //?????m/2???? 
 	{
	 	pin = 0; //????????pin = 0 
	 	
	 	for ( int k = 2; k * k <= i; k++ ) //??i?????????i??????? 
	 	{
		 	if ( i % k == 0 )
		 	   pin = 1;	//??i?????pin???1 
 	    }
	    
	    for ( int l = 2; l * l <= ( m - i ); l++ ) //??m-i????? 
	    {
		 	if ( ( m - i ) % l == 0 )
		 	   pin = 1; //??m-i?????pin???1
	    }	 
	 	 
	    if ( pin == 0 ) //??pin = 0??i?m-i????????? 
	 	   cout << i << " " << m - i << endl;
     }
	 
	 return 0;
}