import java.util.Scanner;

public class Main {

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

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

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

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

public class Main {

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