import java.util.*; 
import java.lang.*;
public class Main{
 public static void main(String[] args) { 
Scanner sc=new Scanner(System.in); 
int x=sc.nextInt();
 int sum=0; 
for(int i=1;i<=3;i++) 
{ 
int b=(int)Math.pow(x,i);
sum=sum+b;

} 
System.out.println(sum);
 }
 }

/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