#include
#include<math.h>
using namespace std;
int main()
{
int n;
cin>>n;
if(n%2==0)
{
long long int x = pow(n/2,2)-1;
long long int y = pow(n/2,2)+1;
cout<<x<<" “<<y<<endl;
}
else
{
long long int x = pow((n+1)/2,2);
long long int y = pow((n-1)/2,2);
long long int z = (pow(n,2)-1)/2;
if(z<x+y)
cout<<z<<” “<<x+y<<endl;
else if(z>x+y)
cout<<x+y<<” “<<z<<endl;
else
cout<<”-1"<<endl;
}
return 0;
}