import java.util.Scanner;
import java.util.LinkedList;
import java.util.PriorityQueue;
import java.util.Queue;

public class Main {	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	}
} import java.util.Scanner; Scanner java.util import java.util.LinkedList; LinkedList java.util import java.util.PriorityQueue; PriorityQueue java.util import java.util.Queue; Queue java.util public class Main {	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	} main {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = a + a*a + a*a*a; b 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 System.out.println(b) System.out.println System.out System System.out b String[] args args public class Main {	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	}
} public class Main {	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	}
} Main
import java.util.Scanner;
import java.util.LinkedList;
import java.util.PriorityQueue;
import java.util.Queue;

public class Main {	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a = sc.nextInt();
		
		int b = a + a*a + a*a*a;
		
		System.out.println(b);
		
	}
}