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;
namespace _0627
{
  class Program
  {
  	static void Main(string[] args)
    {
      int a ;
    bool success = int.TryParse(Console.ReadLine(), out a);
    
    if(success){
    	//数値を計算する
      a = a +(a*a) + (a*a*a);
      
      //計算結果を出力する
      Console.WriteLine(a.ToString());
    
    }
    }
    
  }  
  
  
  }