include<bits/stdc++.h>
using namespace std;
define long long int
in32_t main(){
int n;
cin>>n;
int a,b;
if (n%2 == 0) // if n is even
{
a = (pow(n,2)/4) - 1;
b = (pow(n,2)/4) + 1;
cout<<min(a , b)<<" “<< max(a , b);
}
else if(n%2 != 0){
a = (pow(n,2)-1)/2;
b = (pow(n,2)+1)/2;
cout<<min(a,b)<<” "<<max(a , b);
}
else if(n==1 || n == 0){
cout<<"-1";
}
return 0;
}