#include <iostream>
using namespace std;

int fun(int a) {
	return a*a + 2*a + 1;
}

int boring(int a) {
	return (a + 1) * (a - 1);
}

void out_of_space(int n) {
	cout << "Hello Space!\n";
}

int main() {
	int n; cin >> n;
	switch(n%3) {
		case 1: cout << fun(n) << endl; break;
		case 2: cout << boring(n) << endl; break;
		case 0: out_of_space(n);
	}
}