#include<bits/stdc++.h>
using namespace std;

#define mid(s,e)        (s+(e-s)/2)
#define YES             cout << "YES" << endl
#define NO              cout << "NO" << endl
#define sin(s)	        getline(cin, s)
#define ll              long long
#define ull             unsigned long long
#define dd              double
#define mx 1000005


int main()
{
    //freopen("A.txt","r",stdin);
    //freopen("A.txt","w",stdout);
    ios_base::sync_with_stdio(0);
    ll a;
    cin>>a;
    cout<<a*a*a<<endl;
    return 0;
}