#include "bits/stdc++.h"

#ifdef PRINTERS
#include "printers.hpp"
using namespace printers;
#define tr(a)		cerr<<#a<<" : "<<a<<endl
#else
#define tr(a)    
#endif

#define ll          long long
#define pb          push_back
#define pii         pair<int,int>
#define vi          vector<int>
#define vii 		vector<pii>
#define mi 			map<int,int>
#define mii			map<int,pii>	
#define all(a)      (a).begin(),(a).end()
#define x           first
#define y           second
#define sz(x)       (int)x.size()
#define hell        1000000007
#define endl        '\n'
#define rep(i,a,b)	for(int i=a;i<b;i++)
using namespace std;

void solve()
{
	ll k;
	cin>>k;
	cout<<k*k*k;
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int t=1;
//	cin>>t;
	while(t--)
		solve();
	return 0;
}