NumberGroups.java

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;

public class Solution {

    // Complete the sumOfGroup function below.
    static long sumOfGroup(int k){
        return (long) k*k*k;
    }

    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        int k = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        long answer = sumOfGroup(k);

        bufferedWriter.write(String.valueOf(answer));
        bufferedWriter.newLine();

        bufferedWriter.close();

        scanner.close();
    }
}