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