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.Linq;
using System.Collections.Generic;

namespace Contest
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var p = new ProbremA();
            p.Run();
        }
    }

    internal class ConsoleOutput
    {
        public void Print<T>(T target)
        {
            Console.WriteLine(target.ToString());
        }

        public void PrintList<T>(IEnumerable<T> targets)
        {
            var results = targets.Select(obj => obj.ToString());
            Console.WriteLine(string.Join(" ", results));
        }
    }

    internal class ConsoleInput
    {
        private bool testMode = false;

        private List<string> testInput = new List<string>{
            "10",
        };

        #region Impl

        public int GetInt()
        {
            return int.Parse(Get());
        }

        public List<int> GetIntList()
        {
            return Get().Split(' ').Select(obj => int.Parse(obj)).ToList();
        }

        public string GetString()
        {
            return Get();
        }

        private string Get()
        {
            if (testMode)
            {
                var result = testInput[0];
                testInput.RemoveAt(0);
                return result;
            }

            return Console.ReadLine();
        }

        #endregion Impl
    }

    internal class ProbremA
    {
        private ConsoleInput input = new ConsoleInput();
        private ConsoleOutput output = new ConsoleOutput();

        public void Run()
        {
            int t = input.GetInt();
            int result = t + (t * t) + (t * t * t);
            output.Print(result);
        }
    }

    /*

         internal class ProbremA
        {
            private ConsoleInput input = new ConsoleInput();
            private ConsoleOutput output = new ConsoleOutput();

            public void Run()
            {
            }
        }

     */
}