import java.util.Scanner;

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

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