#include
using namespace std;
int main() {
long long int N;
cin>>N;
if(N>0){
if(N%2==0){
cout<<“The pythagorean triplets are”<<(((N/2)(N/2))-1)<<" “<<N<<” "<<(((N/2)(N/2))+1)<<endl;
}
else{
cout<<“The pythagorean triplets are”<<(((N+1)/2)((N+1)/2)-((N-1)/2)((N-1)/2))<<" "<<(((NN)-1)/2)<<" "<<((N+1)/2)((N+1)/2)+((N-1)/2)*((N-1)/2)<<endl;
}
}
else{
cout<<-1<<endl;
}
return 0;
}