import java.util.*;
import java.io.*;
public class Main{
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long ans = 0;
		int k = 1;
		int kv = 1;
		while(k <= n){
			if(kv == 4) kv = 1;
			ans += (long)Math.pow(k,kv);
			k++;
			kv++;
		}
		System.out.println(ans);
	}
}