import java.util.*;
import java.lang.Math;
public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    }
} import java.util.*; util.* java import java.lang.Math; Math java.lang public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    }
} Main public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    } main {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int ans = a + a*a + a*a*a; ans 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(ans) System.out.println System.out System System.out ans String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    }
} Main
import java.util.*;
import java.lang.Math;
public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int ans = a + a*a + a*a*a;
        System.out.println(ans);
    }
}
