#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cassert>
#include <map>
#include <queue>
using namespace std;
#define MOD 1000000007
using ll=long long;
int main(){
  ll N;
  cin>>N;
  ll ans=(N*N%MOD)*N%MOD;
  cout<<ans<<endl;
}