import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) {
        try {
            BufferedReader stdReader = 
                    new BufferedReader( new InputStreamReader(System.in));
            String seedStr = stdReader.readLine();

            Integer seed = Integer.valueOf(seedStr);
            Integer cubicSeed = seed * seed * seed; 
            System.out.println(cubicSeed);
            System.exit(0);

        } catch (Exception e) {
            System.exit(-1);
        }
    }
}
/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