import java.io.*;
class Main{
    public static void main(String[] args) throws IOException{
        BufferedReader r =
         new BufferedReader(new InputStreamReader(System.in), 1);
         
        String s = r.readLine();    
        int i = Integer.parseInt(s);
          
        if((1 <= i )&(i<= 100)){
            System.out.println(i*i*i);
        }
        r.close();
    }
}
/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