#include <cstdio>
#include <cstdlib>
#include <cstddef>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <string>
#include <iostream>
#include <iomanip>
#include <numeric>
#define L64 long long
#define MOD (1000000007LL)

int main(void)
{
  L64 n, a;
  std::cin >> n;
  a = (n * n) % MOD;
  a = (a * n) % MOD;
  std::cout << a << std::endl;
}