#include<iostream>
#include<string>
#include<algorithm>
#include<math.h>
#include<queue>
#include<map>
#define ll long long
const int MOD = 1000000007;
using namespace std;

int main() {
	ll n;
	cin >> n;
	cout << (((n*n) % MOD)*n) % MOD << endl;
	return 0;

}