#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

const int mod = 1000000007;
ll mmul(ll a, ll b, ll mod) {
    return (a * b) % mod;
}
int main() {
    ll n; cin >> n;
    ll ans = mmul(n, mmul(n, n, mod), mod);
    cout << ans << endl;
    return 0;
}