#include <iostream>
#include <algorithm>
#include <vector>
#include <cstdio>
#include <map>
#include <string>
#include <climits>

using namespace std;

const long long mod = 1e9 + 7;

int main() {
	long long n;
	cin >> n;
	cout << (n * n % mod * n % mod) << endl;
}