Problem:
Score : 100 points

Problem Statement

Given an integer a as input, print the value a + a^2 + a^3.

Constraints

1 \leq a \leq 10

a is an integer.

Input

Input is given from Standard Input in the following format:

a

Output

Print the value a + a^2 + a^3 as an integer.

Sample Input 1

2

Sample Output 1

14

When a = 2, we have a + a^2 + a^3 = 2 + 2^2 + 2^3 = 2 + 4 + 8 = 14.

Print the answer as an input. Outputs such as 14.0 will be judged as incorrect.

Sample Input 2

10

Sample Output 2

1110

Solution in C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{

    static int max = 0;
    static void Main(string[] args)
    {
        //入力
        var a = crI();
        Console.WriteLine(a+a*a+a*a*a);
       
    }

   
  



        //入力受け取り用
    static string crS() { return Console.ReadLine(); }
    static int crI() { return int.Parse(Console.ReadLine()); }
    static int[] arrInt(){return Console.ReadLine().Split(' ').Select(v => int.Parse(v)).ToArray();}
    static long[] arrLong(){ return Console.ReadLine().Split(' ').Select(v => long.Parse(v)).ToArray(); }
    static string[] arrStr(){return Console.ReadLine().Split(' ').ToArray();}
    static List<int[]> mapInt(int h)
    {
        List<int[]> mapInt = new List<int[]>();
        for (int i = 0; i < h; i++)
        {
            mapInt.Add(arrInt());
        }
        return mapInt;
    }
}