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++ (Clang 10.0.0) (judge verdict: Accepted)

#include <iostream>
#include <string.h>
#include <cstring>
#include <math.h>
#include <algorithm>
#include <functional>
#include <stack>
#include <queue>
#include <vector>
#include <map>
using namespace std;

#define cio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define ll long long
#define ii pair < int, int >
#define iii pair < int, ii >
#define INF 987654321
#define LINF 987654321987654321

int main()
{
	cio;
	int a;
	cin >> a;

	cout << a + a * a + a * a * a;
}