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++ (GCC 9.2.1) (judge verdict: Accepted)

#pragma GCC optimize(2)
#include <bits/stdc++.h>
#define MIN -10000000
#define MAX 10000000
#define debug printf("%d",__LINE__)
using namespace std;
int main()
{
	long long a;
	scanf("%lld", &a);
	printf("%lld", a + a * a + a * a * a); 
	return 0;
}