import java.io.*;
public class Main{
    public static void main(String[] args) throws IOException{
        int i = 1;
        int xcubic;
        int a = 0;
        while(i>0){
            BufferedReader x = new BufferedReader(new InputStreamReader(System.in));
            a = Integer.parseInt(x.readLine());           
            if(a >= 1 && a <= 100 )
                i = -1;
         }
         xcubic = a*a*a;
         System.out.println(""+xcubic+"");
    }
}
/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