//EVIEBOT

#include <bits/stdc++.h>


#define inf 0x3f3f3f3f
#define INF 1000111000111000111LL
#define DEBUG(x) cout << '>' << #x << ':' << x << endl;
#define fastIO ios::sync_with_stdio(false);cout.tie(NULL);cin.tie(NULL);
#define endl '\n'
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define MP make_pair
#define MT make_tuple
#define clr(xxx) memset(xxx, 0, sizeof(xxx));

typedef long long int lli;

using namespace std;

ofstream outfile;
ifstream infile;

int main()
{
	infile.open("input.txt");
	outfile.open("output.txt");

	lli k;
	cin >> k;
	lli ans = k*k*k;
	cout << ans << "\n";
}