import java.util.*;
public class Main{
  public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  }
} Main public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  } main {
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int a=Integer.parseInt(sc.next()); a Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc System.out.println(a+a*a+a*a*a) System.out.println System.out System System.out a+a*a+a*a*a a+a*a+a*a*a a a*a a a a*a*a a*a*a a a a String[] args args public class Main{
  public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  }
} public class Main{
  public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  }
} Main
import java.util.*;
public class Main{
  public static void main(String[] args)throws Exception{
    Scanner sc=new Scanner(System.in);
    int a=Integer.parseInt(sc.next());
    System.out.println(a+a*a+a*a*a);
  }
}
