import java.io.*;
class Main
{
public static void main(String[] args) throws IOException
{
BufferedReader br = new BufferedReader( new InputStreamReader(System.in));
String str = br.readLine();
int x = Integer.parseInt(str);

x = x*x*x;
System.out.println(x);
}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz