import java.io.*;

class Main {
    public static void main (String[ ] args) throws IOException {
         
        BufferedReader input = new BufferedReader (new InputStreamReader (System.in));
        String str = input.readLine( );
    	int num = Integer.parseInt(str);
         
        System.out.println(num*num*num);
    }
}
/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