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# (Mono-mcs 6.8.0.105) (judge verdict: Accepted)

using System;
using System.Linq;

class Test {
	static void Main(string[] args) {
      var inputs = System.Console.ReadLine()
    	.Split(' ')
    	.Select(s => int.Parse(s))
    	.ToArray();
      int a = inputs[0];
      Console.WriteLine(a + Math.Pow(a, 2) + Math.Pow(a, 3));
	}
}