#include
using namespace std;
#define ll long long
int main() {
ll n;
cin>>n;
if(n%2==0){
ll n1,n3;
n1=(nn-4)/4;
n3=(nn+4)/4;
if((n3n3)==(n1n1)+(nn)) cout<<n1<<" “<<n3;
else cout<<”-1";
}else if(n%2!=0){
ll n2,n3;
n2=(nn-1)/2;
n3=(nn+1)/2;
if((n3n3)==(n2n2)+(nn)) cout<<n2<<" “<<n3;
else cout<<”-1";
}
return 0;
}